thin section scans

The images presented here are overlaid paired scans of my teaching collection of “exotic” rock thin sections. The left image is the sample in unpolarized light (having found a new thinner polarizing film, samples from 2022 onwards will be scanned in E-W plane-polarized light… see below for details); the right image is the same view under crossed polars. The image pair features a central slider that can be moved left or right to compare specific features under either light condition. In some cases, an additional scan or photo will follow the first image pair, for example, to show the N-S plane-polarized view for strongly pleochroic samples, or to show photo under UV for fluorescent samples, or for some other illustrative purpose.

The featured samples illustrate some of the mineralogical & compositional diversity of a variety of unusual & uncommon igneous, metamorphic, and metasomatic rocks from around the world. The minerals included in my three-volume series of optical mineralogy e-books were photographed from among the first 100 or so of these particular thin sections. Indeed, with a bit of searching, the specific photographed grains can be located in these wider-field scans, providing an even fuller petrographic context to the e-book photos. A detailed figure caption follows the images and presently includes:

(1) the thin section number. All but one of the thin sections are FKM series; in the cases where source material for the billets was sampled from the research collections, or was donated or gifted to me by colleagues, that information is noted.

(2) the sample locality. For most samples, I’ve added a link to the location description on mindat.org, which provides useful additional information on associated minerals, geologic environment, map coordinates, and locality & specimen photos.  A few samples are from unknown or presumed localities, and are so noted.

(3) a descriptive rock name, followed in most cases by some additional petrogenetic interpretations (to be improved over time as I learn more about each sample).

(4) a summary of major minerals present, and any distinctive special textural relationships, such as symplectites, veins or alteration. In some cases, I’ve added some of my own analytical data to highlight notable compositional features of specific minerals, or alternatively, to describe the distribution of certain rare elements among multiple minerals within an unusual bulk composition. Check out the microprobe analytical routines page to see the optimized set of major, minor and trace elements sought for different mineral groups. For certain samples, this section also includes notes about how some of the minerals were normalized (including assumptions or estimates); notes on the crystal chemistry, P-T-X conditions of formation, and/or nomenclature (with external links, when available); and also any relationship to other samples in this collection (with internal links).

For some samples, (5) accompanying videos, including a table of important minerals in the sample, with descriptions of color/pleochroism in PPL, and birefringence in XP. Video coverage is in the early stages and should expand with each periodic update. These optical details to make it easier for viewers to pick out specific minerals in the images, and also in their own samples. I’m also in the process of adding detailed tabulated mineral composition data for the thin sections I’ve been able to take to the microprobe (at this point, roughly half of them). Compiling these tables will be slow going, so check back periodically to follow my progress.

The originals of these scans were captured as TIFF files with a CanoScan 9000f Mark II scanner at 2400 dpi using positive color film mode, with subsequent post-processing in Apple Preview to improve white balance, exposure, sharpness, and resizing to 3300 x 2100 pixels (for an individual file size of ~27 MB… yes, these are a bit unwieldily large!) Each thin section was first scanned in unpolarized light and then again between two sheets of crossed polaroid film aligned parallel to the thin section edges. Originally, “plane polarized” scanning in separate E-W & N-S orientations was attempted to highlight pleochroic variation, but this ultimately had to be abandoned due to significant (and very unsightly!) stray polarization effects [update: in July 2022, I tried out a much thinner polarizing film (0.22 mm) that apparently doesn’t produce a noticeable stray polarization. So for samples FKM-341 onwards, the left-hand scan image no longer uses regular unpolarized light, but is now a true E-W plane-polarized light scan. For occasional samples where only a single pleochroism color is observed in a mineral of interest due to preferred orientation (e.g. the mostly same-oriented serendibite in FKM-371), I’ve added a separate, additional N-S plane-polarized scan to highlight a different pleochroism color. Finally, for selected especially pleochroic samples added prior to FKM-341, as time allows, I’ll go back and re-scan those samples in plane-polarized light]. For the most effective outcome of the “before/after” photo plugin I’ve utilized here to produce the slider feature, I tried my best to ensure that the photo pair are similarly framed (and hence that they overlap as well as possible).

To produce manageable file sizes appropriate for web display, the original TIFF files were converted to JPG files (at the “highest compression” setting, reducing each to ~450 kB), and then set to display at 800 x 509 pixels. Despite the high compression, the images appear almost indistinguishable from the original TIFF images, at least when viewed at typical laptop (Retina display) or mobile device screen sizes; nonetheless, each JPG file is less than 2% of its former TIFF size. I’m certainly no expert at image processing for web display, and indeed what you’re now seeing is my second attempt (my first attempt resulted in noticeably “fuzzy” images). I’m open to suggestions about better ways to display high quality images at manageable sizes, but I have to say that I’m pretty happy with the sharpness of this second batch of photos. For scale, each image captures a central area of approximately 35 x 22 mm of the thin section; consequently, 1 pixel represents about 44 μm of the sample.

All of the FKM series thin sections are uncovered and polished, so quite a number have spent time in the microprobe.  For those lucky samples, I typically have analytical data on essentially the entire assemblage, and will try to incorporate more of those results here as I continue to update this page. Most of the samples in the FKM series were purchased from several “rare-mineral” dealers at the various Tucson Gem & Mineral Show venues between 2010 and 2022, and from a few similar online dealers (note: identifications not verified by analytical data are based on dealers’ labels, and in several cases, dealers’ labels have been found to be disappointingly incorrect).  I try to add roughly 30-50 new thin sections every year, so look for this collection to grow.

Unlike some other collections of thin section images on the web, there are few rock types represented here that would likely be covered in an “intro to petrology” course. Nonetheless, although many of the featured rocks and their constituent minerals are quite rare and unusual (and so perhaps may seem to be of little particular interest to most viewers), a number of these samples are from classic localities, a few are great examples of diagnostic optical properties such as marked pleochroism or striking anomalous birefringence, and all illustrate an interesting texture, mineral assemblage, or bulk composition. Indeed, for a few of these rocks, only a limited number of geologists have ever even seen them in thin section; therefore, I’m very happy to be able to share the images of these really “cool” out-of-the-ordinary rocks with the global online community.

Note: I currently have just over 400 samples featured here, so it’ll probably take some time to fill in all of the caption information accompanying each image (hence the “test” and “add photo(s)” placeholders currently under some samples); check back periodically to follow my progress. And finally, please remember, these images are copyrighted. Enjoy them here for their academic and aesthetic value, but please don’t copy or use them offsite without permission. If you do have a particular educational or research interest in some of the images, I’d be happy to give permission for their limited (& not-for-profit) use… just ask (you can contact the website administrator).

So, browse the pages below, or use the index search bar to find specific samples of interest based on mineralogy or other search criteria. Note: if you have a slow internet connection, it might take a minute or two to load these image-intensive pages.

samples FKM-1 to FKM-25

samples FKM-26 to FKM-50

samples FKM-51 to FKM-75

samples FKM-76 to FKM-100

samples FKM-101 to FKM-125

samples FKM-126 to FKM-150

samples FKM-151 to FKM-175

samples FKM-176 to FKM-200

samples FKM-201 to FKM-225

samples FKM-226 to FKM-250

samples FKM-251 to FKM-275

samples FKM-276 to FKM-300

samples FKM-301 to FKM-325

samples FKM-326 to FKM-350

samples FKM-351 to FKM-375

samples FKM-376 to FKM-400

samples FKM-401 to FKM-425

non-FKM series samples



index of scanned thin sections

This table is a searchable summary of all of the samples currently included in this collection. Note that the “anticipated major minerals” column started as largely based off of dealers’ labels and/or cursory hand sample identification. As I’ve had the opportunity to do more detailed petrography and microprobe work on these samples, I’ve gone back and amended entries to better reflect the actual minerals present, rather than simply the anticipated ones. In cases where there is a discrepancy, I’ve opted to retain the original dealer identifications, but also adding a note updating the mineral ID (for example, “nybøite [listed on dealer label but not observed; actually glaucophane] denoted for sample FKM-3 indicates that the specimen was originally labeled as containing nybøite, but only the similar-appearing blue amphibole glaucophane was observed).

Amending these entries (not only the “anticipated minerals” column, but also the “general environment” and “notable enrichment” columns) is an ongoing process, so look for this table to become more accurate and more detailed with time (and thus ideally more useful too).

Of course, the strength of this table is the ability to search for and isolate samples based on user-selected criteria. For samples with detailed petrographic or analytical data, I’ve formatted the mineral entries to be particularly search-friendly, by including common mineral group and series names, informal names of compositional varieties, as well as an indication of whether multiple names represent discrete phases or simply compositional gradation. The formats are:

—plain font without quotation marks: recognized species (e.g. forsterite).

—plain font with quotation marks: non-end-member varietal names (e.g. “oligoclase”), potentially new species that are not yet recognized (e.g. “SrSr-ruizite”… I’ve tried to follow logical nomenclature conventions in these cases and use established root-names with appropriate chemical modifiers), or names that are in the process of being replaced but are still in common usage (e.g. “sodic-gedrite”).

italics font: commonly used mineral family or series names (e.g. amphibole, biotite, plagioclase).

—parentheses and brackets, except when used for Levinson suffixes, identify the specific minerals of a family or series that are present, or alternatively, note the absence or mis-identification of a species that was anticipated from the dealer label, or note some other important feature.

—a back-slash between minerals denotes a composition which straddles a nomenclature boundary, or a compositional gradation between two or more end-members. For example, the entry:

tremolite/actinolite

can either represent an essentially homogeneous composition on the Mg/(Mg+Fe2+) = 0.9 nomenclature boundary that delineates tremolite from actinolite, or alternatively, represent a zoned amphibole grading from distinctly tremolite regions to distinctly actinolite regions. Check the more detailed figure caption accompanying the particular sample of interest to determine which of these two very different situations is applicable.

—a comma between minerals denotes distinct phases within a sample. For example, the entry:

muscovite, quartz

means that both minerals are present as individual species.

In the case where two minerals seem like they should be part of a compositional gradation but are separated by a comma rather than a back-slash, for example:

amphibole [magnesio-hornblende, actinolite])

also denotes distinct phases and indicates the minerals formed separately rather than as a single zoned crystal (e.g. igneous magnesio-hornblende rimmed by later actinolite alteration).

Multiple formats may be used in combination to convey richer detail. For example:

feldspar (K-spar [Ba-rich orthoclase, microcline], plagioclase [“oligoclase”/”andesine”, albite])

indicates that microcline and a Ba-rich orthoclase are both present as distinct K-spar phases. These potassium feldspars occur with a compositionally zoned plagioclase gradational between oligoclase and andesine (or, a homogeneous Ab70An30 plagioclase), as well as an additional separate albite phase.

The preceding feldspar example also demonstrates that by using this format, a user can expand or narrow a search by selecting either a general search term or a more specific one (for example, searching for all samples containing any feldspar, any plagioclase, or a specific plagioclase composition range). Cool, huh?

Anticipated minerals listed in gray are based on dealer labels, on hand sample evaluation, or on subsequent optical evaluation of the prepared thin section; minerals listed in black have been further examined with the microprobe. In a few cases, some of the samples with minerals listed in gray have in fact been microprobed, but the data either haven’t been normalized yet, or haven’t been tabulated in the index yet. Finally, note that the listed order for a sample is not based on abundance, but rather roughly follows Dana’s classification.


sample number locality anticipated major minerals general environment notable enriched elements
FKM-1 Merelani, Tanzania graphite, pyrrhotite, pyrite, calcite, apatite (fluorapatite), garnet (V-rich grossular), titanite, zoisite, pyroxene (diopside), quartz granulite facies organic-rich calc-silicate vanadium
FKM-2 Prabornaz mine, St. Marcel, Italy rutile, braunite, Sb-rich titanite, epidote group (Sr-rich piemontite), quartz, feldspar (K-spar [orthoclase]) meta manganiferous sediment manganese,
antimony, strontium
FKM-3 Palos Hill, Syros, Greece monazite-(Ce), titanite, epidote group (epidote/REE-rich epidote), pyroxene (jadeite/omphacite/aegirine-augite), amphibole (nybøite [listed on dealer label but not observed; actually glaucophane]), mica (muscovite/paragonite) UHP blueschist/eclogite transitional
FKM-4 Kiona Bay, Tinos, Greece spinel group (magnetite), apatite (fluorapatite), garnet (almandine), titanite, epidote group (epidote), pyroxene (omphacite), amphibole (ferrowinchite [listed on dealer label but not observed; actually winchite], glaucophane, actinolite), chlorite (clinochlore) blueschist/greenschist transitional
FKM-5 Cape Marmari, Syros, Greece calcite, titanite, lawsonite (listed on dealer label but not observed; completely pseudomorphed by the low grade minerals), pumpellyite-(Al), amphibole (actinolite), mica (muscovite), chlorite (clinochlore) blueschist/greenschist/prehnite-pumpellyite transitional chromium
FKM-6 Ottré, Liege, Belgium hematite, apatite (fluorapatite), monazite-(Ce), ottrélite (listed on dealer label but not observed; actually Mn-rich chloritoid), mica (muscovite), chlorite (clinochlore) low-mod grade metapelite manganese
FKM-7 Brenk, Eifel, Germany perovskite group (perovskite), apatite (fluorapatite), rinkite, pyroxene (diopside, aegirine-augite), feldspar (K-spar [sanidine]), sodalite group (nosean), nepheline, Na-rich leucite, zeolite (“K-rich natrolite?”, analcime) nosean phonolite potassium, sulfur, chlorine
FKM-8 Sterling Hill, NJ, USA brucite?, calcite, dolomite, strontianite, humite group (norbergite, chondrodite), amphibole (fluoro-pargasite, tremolite), mica (biotite [Ba-rich phlogopite]), serpentine? high grade magnesian marble fluorine
FKM-9 Bellerberg, Eifel, Germany calcite, garnet (Fe-Ti-rich grossular), gehlenite (listed on dealer label but not observed) high T metamorphosed calcareous ejecta
FKM-10 Crestmore quarry, CA, USA monticellite, calcite, possibly hydroxylellestadite (apatite group) high grade metasomatized marble (“skarn”)
FKM-11 Fiskenaes, Greenland sapphirine, amphibole (pargasite, “sodic-gedrite” or alternatively composition on the {gedrite}-{“rootname 1”} join), mica (biotite [phlogopite]), chlorite (clinochlore) UHT granulite metasomatized metapelite? chromium
FKM-12 Nine Mile mine, Broken Hill, NSW, Australia ilmenite, spinel group (gahnite), quartz, “sheet silicate” high grade Zn-rich siliceous meta-exhalite? zinc
FKM-13 Merelani, Tanzania graphite, “Fe-oxide”, “Mn-oxide”, fluorite, calcite, garnet (grossular), zoisite, pyroxene (diopside), “Ca-stilpnomelane”, quartz granulite facies organic-rich calc-silicate vanadium
FKM-14 Langesundfjord, Norway “Nb-oxide?”, apatite (fluorapatite, “calciobritholite-(Ce)”), astrophyllite group (astrophyllite/niobophyllite), pyroxene (aegirine), feldspar (K-spar [microcline], plagioclase [albite]), zeolite (Ca-rich natrolite?) alkali feldspar syenite niobium, REE
FKM-15 Laytonville quarry, Mendocino Co, CA, USA garnet (spessartine), stilpnomelane, zussmanite (listed on dealer label but not observed), quartz blueschist facies Fe-Mn metaquartzite manganese, iron
FKM-16 Tsitondroina, Malagasy Republic (Madagascar) chrysoberyl, amphibole (taramite [listed on dealer label but not observed; actually F-rich pargasite]), feldspar (plagioclase [anorthite]) amphibole-anorthite vein (“amphibolite”-like) beryllium
FKM-17 Sengischorr Mt., Lovozero massif, Kola peninsula, Russia lamprophyllite, aegirine, titanite, microcline, eudialyte nepheline syenite barium, zirconium, chlorine, REE
FKM-18 Pargas, Finland fluorite, calcite, amphibole (pargasite [listed on dealer label but not observed; actually pyroxene (diopside)]), scapolite (meionite) high grade marble fluorine
FKM-19 Gjerdingen, Norway kupletskite, elpidite, alkali feldspar (perthite), aegirine, riebeckite “ekerite” (soda granite) zirconium, titanium, niobium, fluorine, manganese
FKM-19b Gjerdingen, Norway kupletskite, elpidite, alkali feldspar (perthite), aegirine, riebeckite “ekerite” (soda granite) zirconium, titanium, niobium, fluorine, manganese
FKM-20 Sussex Co., NJ, USA zincite, spinel group (franklinite), calcite, willemite, olivine (tephroite), hodgkinsonite, gageite high grade Zn-bearing marble zinc, manganese
FKM-21 Greenwood mine, Orange Co., NY, USA ilmenite, spinel group (magnetite), monazite-(Ce), apatite (fluorapatite), pyroxene (diopside/augite), amphibole (fluoro-potassichastingsite [listed on dealer label but not observed; actually potassic-magnesio-hastingsite]), feldspar (K-spar [orthoclase, perthite orthoclase host], plagioclase [“andesine”, perthite “oligoclase” lamellae]), quartz Fe mine silicate alteration assemblage fluorine, chlorine, potassium
FKM-22 Cascade Canyon, San Gabriel Mtns., CA, USA corundum desilicified granite?
FKM-23 Anantagiri, Andhra Pradesh, India rutile, ilmenite, spinel group (spinel, hercynite), monazite-(Ce), garnet (almandine/pyrope), sillimanite, cordierite, pyroxene (“hypersthene”), sapphirine, mica (biotite [phlogopite]), quartz, feldspar (K-spar [orthoclase], plagioclase [“andesine”]) UHT granulite metapelite zinc, chromium
FKM-24 Fotadrevo area, Tuléar province, Malagasy Republic (Madagascar) corundum (in hand sample but not in thin section), amphibole (tschermakite), chlorite (clinochlore), feldspar (plagioclase [anorthite]) granulite meta-amphibolite chromium
FKM-25 Sar-e-Sang, Badakhshan, Afghanistan pyrite, calcite, dolomite, apatite (carbonate-hydroxylapatite), olivine (forsterite), zircon, pyroxene (diopside), mica (biotite [phlogopite]), nepheline, sodalite group (lazurite) meta-evaporite with likely autologous metasomatism sulfur, chlorine
FKM-26 Merelani, Tanzania graphite, sulvanite, calcite, garnet (“V-rich fluor-hydrogrossular”?), V-rich titanite, epidote group (mukhinite), pyroxene (diopside), amphibole (V-rich tremolite/V-rich magnesio-hornblende), mica (biotite [phlogopite]), chlorite (V-rich clinochlore) granulite facies organic-rich calc-silicate vanadium
FKM-27 Kipawa complex, Villedieu township, Québec, Canada fluorite, aluminocerite-(Ce), eudialyte group (eudialyte), pyroxene (aegirine-augite), amphibole (composition on the {K-bearing fluoro-magnesio-arfvedsonite}-{K-bearing fluoro-richterite} join), feldspar (K-spar [microcline], plagioclase [albite]) eudialyte syenite (metamorphosed) REE, fluorine, zirconium, potassium
FKM-28 Betroka, Malagasy Republic (Madagascar) monazite-(Ce), apatite (fluorapatite), zircon, cordierite, pyroxene (enstatite), sapphirine, mica (biotite [phlogopite]), clay (“Al-dominant saponite”?), feldspar (K-spar [perthite orthoclase/sanidine? host], plagioclase [perthite “oligoclase” lamellae]) UHT granulite argillaceous marble (sakenite)
FKM-29 Mt. Yukspor, Khibiny massif, Kola peninsula, Russia eudialyte, aegirine, titanite, microcline eudialyte syenite REE, zirconium, titanium
FKM-30 Woods mine, Tamworth, NSW, Australia iwateite, braunite, rhodonite group (vittinkiite), serandite, natronambulite?, amphibole (kôzulite [listed on dealer label but not observed; actually mangano-mangani-ungarettiite/”potassic-mangano-mangani-ungarettiite”]), quartz meta manganiferous sediment manganese, lithium
FKM-31 Mysore district, Karnataka, India corundum, fuchsite, tschermakite high grade meta-argillite chromium
FKM-32a Karelia, Russia pyrite, rutile, ilmenite, apatite (fluorapatite), garnet (almandine), kyanite, Cr-rich staurolite, mica (muscovite, biotite [phlogopite]), feldspar (plagioclase [“oligoclase”]), quartz metapelite chromium
FKM-32b Karelia, Russia fuchsite, pyrite, garnet, kyanite, biotite, quartz metapelite chromium
FKM-33 Jayville mine, NY, USA spinel group (magnetite), calcite, amphibole (K-F-Cl-rich hastingsite), serpentine (greenalite?), mica (biotite [Mg-F-rich annite/Mg-OH-rich fluorannite]), quartz Fe mine silicate alteration assemblage potassium, fluorine, chlorine, iron
FKM-34 Nordfjord, Norway chalcopyrite, cobaltpentlandite, rutile, apatite (fluorapatite/hydroxylapatite), zircon, garnet (Ca-Mg-rich almandine/Fe-Ca-rich pyrope), kyanite, zoisite, pyroxene (omphacite), amphibole (magnesio-hornblende, barroisite/taramite), mica (paragonite) mafic eclogite
FKM-35 Bancroft, Ontario, Canada (?) plagioclase, aegirine, sodalite, nepheline, zircon Na-metasomatite (fenite) chlorine, iron
FKM-36 Franklin marble, NY or NJ, USA spinel group (spinel), calcite, dolomite, humite group (chondrodite) high grade marble fluorine
FKM-37 Franklin marble, NY or NJ, USA graphite, calcite, spinel, fluoborite, sinhalite, warwickite high grade marble boron, fluorine, zirconium
FKM-38 Cascade Slide, Adirondacks, NY, USA magnetoplumbite group oxide?, calcite, garnet (Al-rich andradite), REE-rich vesuvianite, pyroxene (diopside) marble REE
FKM-39 Chara river, Murun, Siberia, Russia burbankite, steacyite group (steacyite/turkestanite), pyroxene (aegirine), amphibole ({potassic-magnesio-arfvedsonite}/{potassic-richterite}), charoite, quartz, feldspar (K-spar [Fe-bearing microcline]) K-metasomatite (fenite?) strontium, barium
FKM-39b Chara river, Murun, Siberia, Russia tinaksite, pyroxene (V-enriched aegirine), charoite, dalyite, quartz, feldspar (K-spar [Fe-bearing microcline]) K-metasomatite (fenite?) strontium, barium
FKM-40 Antanimora commune, Tular province, Malagasy Republic (Madagascar; stated as from “Majunga”) spinel group (spinel), calcite, apatite (fluorapatite/chlorapatite), olivine (forsterite), 1:1 chlorite-smectite interstratification (“Ca-dominant Li-bearing tosudite”), quartz high grade marble chlorine
FKM-41 Oka, Québec, Canada spinel group (magnetite), pyrochlore group (F-bearing hydroxycalciopyrochlore?), calcite, barite, apatite (fluorapatite), pyroxene (diopside), mica (biotite [phlogopite]) carbonatite niobium, phosphorus
FKM-42 Martiniana Po, Dora Maira, Italy rutile, monazite-(Ce), zircon, garnet (pyrope), kyanite, talc, mica (“phengite” [along {muscovite}-{aluminoceladonite} join]), quartz, coesite? eclogite facies whiteschist magnesium, aluminium
FKM-43 Broken Hill, NSW, Australia chalcopyrite, galena, sphalerite, calcite, apatite (fluorapatite), olivine (tephroite) high grade Mn-rich marble manganese
FKM-44 Imilchil, Morocco Mg-bearing ilmenite, titanite, epidote group (epidote), pyroxene (diopside), amphibole (actinolite/ferro-actinolite/”Na-Ti-Fe3+-rich oxo/calcic amphibole ss” [roughly along {ferri-kaersutite}-{edenite} join]), chlorite (clinochlore), quartz Ca-(Na)-metasomatite titanium, iron
FKM-45 Sterling Hill, NJ, USA galena, Cd-rich sphalerite, pyrophanite, spinel group (gahnite, Mn-rich franklinite), Mn-rich calcite, willemite, pyroxene (“jeffersonite” [Mn-Zn-rich diopside/Mn-Zn-rich augite]), rhodonite group (“fowlerite” or “zincorhodonite”), amphibole (Mn-Zn-rich hastingsite, Mn-Zn-rich tremolite), mica (biotite [hendricksite (not observed; actually Mn-Zn-rich phlogopite)]) high grade Zn-bearing marble zinc, manganese
FKM-46 Moose River, NY, USA prismatine, cordierite, quartz UHT granulite metapelite boron
FKM-47 Sussex Co., NJ, USA willemite, franklinite high grade Zn-bearing marble zinc, manganese
FKM-48 Sussex Co., NJ, USA calcite, rhodochrosite, spinel group (gahnite, Mn-rich franklinite), willemite, olivine (historically Mg-Zn-rich tephroite, but may instead be an ordered “MnMg-olivine”) high grade Zn-bearing marble zinc, manganese
FKM-49 San Carlos complex, Tamaulipas, Mexico spinel group (magnetite), apatite (fluorapatite), pyroxene (diopside), amphibole (K-bearing ferri-kaersutite/K+Ti-bearing magnesio-hastingsite/K+Ti-bearing hastingsite), mica (biotite [“biotite”]), nepheline, titanite, feldspar (K-spar [orthoclase], plagioclase [“oligoclase”/ “andesine”/”labradorite”]) nepheline monzosyenite titanium
FKM-50 Lovozero massif, Kola peninsula, Russia murmanite, aegirine, plagioclase, orthoclase nepheline syenite niobium
FKM-51 Lovozero massif, Kola peninsula, Russia lorenzenite, aegirine, plagioclase, orthoclase nepheline syenite titanium, niobium
FKM-52 Dara-i-Pioz, Tajikistan reedmergnerite, quartz alkali granite boron, REE, cesium, zirconium
FKM-53 Tres Pozos, Baja California Norte, Mexico gillespite, sanbornite, celsian, alforsite, bazirite, cerchiaraite, witherite Ba-Ti-B-metasomatite barium
FKM-53b Tres Pozos, Baja California Norte, Mexico gillespite, sanbornite, celsian Ba-Ti-B-metasomatite barium
FKM-54 (Sterling Hill?) Franklin district, NJ, USA galena, hematite, spinel group (franklinite), calcite, garnet (Mn-rich andradite), pyroxene (“jeffersonite” [Mn-Zn-rich diopside]), rhodonite group (“fowlerite” or “zincorhodonite”), amphibole (Mn-Zn-rich actinolite), mica (biotite [Mn-Zn-rich phlogopite)]) high grade Mn-metasomatite manganese
FKM-55 Oka, Québec, Canada calcite, apatite, pyrochlore carbonatite niobium, phosphorus
FKM-56 Oka, Québec, Canada melilite, haüyne haüyne melilitolite (“okaite”) sulfur, titanium
FKM-57 Oka, Québec, Canada niocalite, calcite carbonatite niobium
FKM-58 Meldon mine, Okehampton, Devon, UK malayaite, diopside, quartz, andradite skarn tin
FKM-59 Waldheim, Saxony, Germany prismatine, quartz, dravite, cordierite, garnet granulite boron
FKM-60 Umbozero mine, Lovozero massif, Kola peninsula, Russia sérandite, ussingite, aegirine nepheline syenite manganese
FKM-61 Canta, Lima, Peru dumortierite, foitite meta-argillite boron
FKM-62 Khibiny massif, Kola peninsula, Russia aegirine, eudialyte ,apatite, potassic-arfvedsonite nepheline syenite zirconium
FKM-63 Mahenge, Morogoro, Tanzania spinel group (spinel [in hand sample but not in thin section]), calcite, amphibole (F-rich pargasite), mica (biotite [phlogopite]), chlorite (clinochlore) high grade marble
FKM-64 Kipawa complex, Villedieu township, Québec, Canada miserite, eudialyte eudialyte syenite (metamorphosed) REE, zirconium
FKM-65 Kipawa complex, Villedieu township, Québec, Canada mosandrite, plagioclase, eudialyte, arfvedsonite eudialyte syenite (metamorphosed) zirconium
FKM-66 Cerro Sapo, Bolivia Fe-rich dolomite/Mg-rich ankerite, strontianite, burbankite, dawsonite, ancylite-(Ce), alunite supergroup (goyazite), feldspar (k-spar [orthoclase]), sodalite group (sodalite), zeolite (“Sr-edingtonite?”, analcime) ankerite carbonatite chlorine, strontium, barium, REE
FKM-67 Plenty River mine area, Harts Range, NT, Australia kornerupine, biotite, feldspar, quartz, tourmaline granulite
FKM-68 Longido, Tanzania spinel group (spinel), corundum, diaspore, zoisite, pumpellyite-(Al), amphibole (Cr-rich pargasite), chlorite (clinochlore) high pressure “amphibolite” (meta-gabbroid) chromium
FKM-69 Mautia Hill, Tanzania rutile, hematite, kyanite, yoderite, talc, quartz eclogite facies whiteschist
FKM-69b Mautia Hill, Tanzania rutile, hematite, kyanite, yoderite, talc, quartz eclogite facies whiteschist
FKM-70 Tsukigaya mine, Fukushima, Japan dumortierite, foitite, quartz meta-argillite boron
FKM-71 Alto Chapare, Bolivia hematite, hydromagnesite, tourmaline (oxy-dravite, povondraite/alumino-povondraite/”K-povondraite”), talc, feldspar (K-spar [presumably microcline or adularia]) K-B-Fe-metasomatite potassium, boron
FKM-72 Klause, Bad Gleichenberg, Styria, Austria kolbeckite (in hand sample but not in thin section) altered latite scandium
FKM-73 Stokkøya, Langesundfjord, Norway hiortdahlite, plagioclase nepheline syenite zirconium
FKM-74 Palabora, South Africa calcite, aegirine, apatite, k-spar carbonatite-associated K-fenite?
FKM-75 120 km E of Lusaka, Zambia cobaltpentlandite, thiospinel (linnaeite), rutile, hematite, ilmenite, spinel group (magnetite), “cobalto-högbomite-2N2S“, sillimanite, kyanite, Co-rich staurolite, mica (margarite), chlorite (clinochlore), quartz amphibolite grade siliceous “emery” cobalt
FKM-76 Broken Hill, NSW, Australia inesite, calcite, quartz high grade Mn-metasomatite manganese
FKM-77 Ilímaussaq intrusion, Greenland hydroxylbastnäsite-(Ce), eudialyte group (eudialyte), catapleiite, pyroxene (aegirine), pectolite, feldspar (K-spar [orthoclase], plagioclase [albite]), nepheline, zeolite (K-rich gmelinite?, K-rich chabazite?, analcime?) kakortakite sodium, zirconium
FKM-78 Bozeman corundum mine, Gallatin Co., MT, USA corundum, feldspar, biotite syenitic? gneiss
FKM-79 Black Rock, Leucite Hills, WY, USA fluoro-potassicrichterite (listed on dealer label but not observed; actually diopside), phlogopite, olivine lamproite (orendite) fluorine, potassium
FKM-80 In den Dellen quarry, Laacher See volcano, Eifel, Germany spinel group (magnetite), apatite (fluorapatite), pyroxene (diopside), feldspar (K-spar [sanidine]), haüyne haüyne phonolite sulfur
FKM-81 Wipper Valley, Biesenrode, Harz Mountains, Saxony-Anhalt, Germany apatite (fluorapatite), carpholite/magnesiocarpholite, chlorite (sudoite) high P-low T metamafic? manganese
FKM-82 Itremo commune, Fianarantsoa province, Malagasy Republic, (Madagascar) dumortierite, sillimanite, quartz, k-spar pegmatite? boron
FKM-83 Långban, Sweden magnesioferrite metamorphosed Pb-Ba-Mn metasomite lead, barium, manganese
FKM-84 3 km SW of Kansi, Hpakant-Tawmaw jade tract, Kachin state, Burma jadeite, kosmochlor, eckermannite, glaucophane, natrolite, edingtonite blueschist jadeitite chromium
FKM-85 Přibyslavice, Bohemia, Czech Republic apatite (fluorapatite), tourmaline (oxy-schorl), mica (muscovite), feldspar (K-spar [perthite orthoclase host], plagioclase [perthite albite lamellae]), quartz granite boron
FKM-86 Långban, Sweden melanotekite, phlogopite, celsian metamorphosed Pb-Ba-Mn metasomite lead, barium, manganese, arsenic
FKM-87 Franklin, NJ, USA esperite high grade Zn-bearing marble zinc, manganese, lead
FKM-88 (Parker shaft?), Franklin, NJ, USA spinel group (franklinite), barite, garnet (Mn-rich andradite/Mn-rich grossular), epidote group (epidote/Pb-rich epidote-(Sr)/Sr-rich hancockite), mica (biotite [Mn-rich hendricksite]) Pb-bearing skarn lead, strontium, manganese
FKM-89 Bastnäs, Sweden calcite, OH-rich bastnäsite-(La), cerite-(Ce), epidote group (ferriallanite-(Ce)/ferriallanite-(La)), gatelite supergroup (“ferrigatelite-(Ce)”), amphibole (actinolite), talc REE metasomatite REE
FKM-90 Point of Rock quarry, Colfax Co., NM, USA mangan-neptunite, sanidine, nepheline, aegirine phonolite manganese, lithium
FKM-91 Västanåberget, Sweden monazite-(La)/monazite-(Ce), Mn-rich andalusite, mica (muscovite), chlorite (clinochlore) schist manganese
FKM-92 Tetětice (Struhadlo?), near Klatovy, Bohemia, Czech Republic goldmanite, pyrrhotite, calcite, tremolite, mukhinite metamorphosed U-V rollfront vanadium
FKM-93 Pallavaram, Chennai, Tamil Nadu, India ferro-ferri-tschermakite (listed on dealer label but not observed; instead opx and cpx), anorthite aluminous amphibolite (“ferrosilite diorite”)
FKM-94 Broken Hill, NSW, Australia spessartine, galena, sphalerite, pyroxmangite, clino-ferro-suenoite high grade Mn-metasomatite manganese
FKM-95 Isua, Greenland spinel group (magnetite), calcite, apatite (hydroxylapatite), amphibole (actinolite), quartz banded iron formation iron
FKM-96 Algonquin Provincial Park, Ontario, Canada pentlandite, chalcopyrite, pyrrhotite, pyrite, ilmenite, spinel group (magnetite, hercynite), apatite (fluorapatite), olivine (Mg-rich fayalite), garnet (almandine), pyroxene (“hypersthene”, diopside/augite), amphibole (Ti-rich magnesio-hastingsite), mica (biotite [phlogopite]), chlorite (clinochlore), feldspar (K-spar [orthoclase], plagioclase [“oligoclase”]) coronitic metagabbro
FKM-97 Bohemia, Czech Republic apatite (fluorapatite), garnet (grossular/andradite), epidote group (epidote), pyroxene (hedenbergite) garnet clinopyroxenite iron
FKM-98 Kola Peninsula, Russia eudialyte, nepheline eudialyte syenite zirconium
FKM-99 northern New Caledonia glaucophane retrograded blueschist
FKM-100 Mayavetch River, Poubo terrane, northern New Caledonia glaucophane, fuchsite blueschist
FKM-101 Chester, VT USA chlorite, talc, pyrite, apatite greenschist metabasite
FKM-102 near Custer, SD, USA monazite-(Ce), apatite (fluorapatite), tourmaline (oxy-dravite/dravite), mica (muscovite, biotite [annite]), quartz (very minor!), feldspar (K-spar [orthoclase, microcline], plagioclase [albite]) B-bearing metapelite boron
FKM-103 Kimberley, South Africa garnet, forsterite kimberlite
FKM-104 Harding pegmatite, NM, USA fluorcalciomicrolite, mica (lepidolite [not observed; actually Li-rich muscovite]), pucherite (or polymorph), feldspar (K-spar [microcline]) Li-Ta pegmatite lithium, tantalum, bismuth
FKM-105 K-2 area, Gilgit-Baltistan region, Pakistan microcline, quartz, azurite, biotite, muscovite, epidote, chlorite, titanite, albite granitic gneiss with blue spots copper
FKM-106 Damtjern Lake, Fen complex, Norway clinopyroxene, pargasite, ilmenite, phlogopite, ülvospinel-magnetite, calcite damkjernite dike (alnoitic lamprophyre) titanium
FKM-107 “Mobetsu”(?), Malagasy Republic (Madagascar) grandidierite, phlogopite B-bearing metamorphic boron
FKM-108 Vihobola, Malagasy Republic (Madagascar) grandidierite, phlogopite, diopside B-bearing diopside pyroxenite boron
FKM-109 unknown locality, but presumed to be from the Franciscan assemblage of California rutile, zircon, garnet (almandine), titanite, lawsonite, epidote group (epidote), amphibole (glaucophane/magnesio-riebeckite), mica (muscovite/aluminoceladonite), chlorite (clinochlore) mafic blueschist
FKM-110 unknown locality, but presumed to be from Crestmore garnet, vesuvianite, wollastonite skarn
FKM-111 unknown locality lawsonite, garnet blueschist
FKM-112 unknown locality, but presumed to be from the Franklin marble of NJ or NY spinel group (spinel), ilmenite, calcite, dolomite, apatite (fluorapatite), olivine (forsterite), humite group (hydroxylclinohumite/clinohumite), amphibole (pargasite), mica (biotite [phlogopite]) spinel phlogopite marble fluorine
FKM-113 Training School flow, University of Hawaii campus, Honolulu, HI, USA nepheline, olivine olivine nephelinite
FKM-114 Moiliile quarry, Honolulu, HI, USA nepheline, melilite, olivine, pyroxene olivine melilitite
FKM-115 Windham, VT, USA Ti-rich hematite, Fe-rich dolomite, chlorite (clinochlore) ankerite chlorite schist
FKM-116 Hague, Warren Co., NY, USA almandine, sillimanite, cordierite, K-feldspar granulite metapelite
FKM-118 Mountain Pass, CA, USA calcite, barite, bastnasite carbonatite barium, REE
FKM-119 Brumado, Bahia, Brazil tourmaline (uvite), talc Mg-metasomatite boron, magnesium
FKM-120 Yasman valley, Tien Shan mountains, Tajikistan nepheline, cancrinite, biotite nepheline syenite
FKM-121 American #1 talc mine, Balmat-Edwards, NY, USA galena, sphalerite, calcite, apatite (fluorapatite), zircon, amphibole (tremolite), talc, mica (biotite [“interlayer-deficiency phlogopite”]), granulite facies metasomatic metacarbonate
FKM-122 ZCA #4 mine, Balmat-Edwards, NY, USA apatite (turneaureite [not observed; actually As-rich chlorapatite]), tourmaline (uvite), pyroxene (donpeacorite), amphibole (“manganocummingtonite”) granulite facies metasomatic metacarbonate manganese
FKM-123 Gouverneur mine, Fowler, NY, USA calcite, apatite (fluorapatite), braunite, amphibole (tremolite), talc granulite facies metasomatic metacarbonate manganese
FKM-124a Hpakant-Tawmaw jade tract, Kachin state, Burma jadeite blueschist metasomatite
FKM-124b Hpakant-Tawmaw jade tract, Kachin state, Burma pyroxene (jadeite), amphibole (potassic-richterite/richterite/eckermannite), mica (biotite [“interlayer-deficient phlogopite”]), vermiculite, mixed layer serpentine/chlorite? (~A0.5(Mg3.5Al1.5□)[Si4O10](OH)8), zeolite (harmotome) blueschist metasomatite
FKM-126 Willsboro, Essex Co., NY, USA calcite, apatite (fluorapatite), garnet (grossular/andradite), pyroxene (diopside), wollastonite, quartz pyroxene hornfels facies calc-silicate
FKM-127 Hiassu farm, Itaju do Colnia, Bahia, Brazil sodalite, cancrinite sodalite syenite chlorine
FKM-128 Mt. Ruoutevare, 13 km N. of Kvikkjokk, Lappland, Sweden magnesio-högbomite (listed on dealer label but not observed), magnetite, ilmenite, amphibole high grade Fe-Ti oxide titanium
FKM-129 Braintree complex, VT, USA pyrrhotite, pyrite/Co-bearing pyrite, ilmenite, celestite, apatite (fluorapatite), zircon, titanite, epidote group (allanite-(Ce)/REE-rich epidote, epidote/Sc-bearing epidote/clinozoisite), amphibole (magnesio-ferri-hornblende/ferro-ferri-tschermakite), mica (biotite [annite]), chlorite (chamosite), feldspar (plagioclase [albite]) metasomatized quartz ferro-diorite iron, titanium
FKM-130 eudialyte prospect (Windy Fork granite pluton?), McGrath district, Alaska Range, AK USA eudialyte, arfvedsonite, feldspar nepheline syenite zirconium, REE
FKM-131 Mary Kathleen, QLD, Australia pyrite, apatite (fluorapatite), garnet (grossular/andradite), stillwellite-(Ce), epidote group (REE-rich epidote/allanite-(Ce)), pyroxene (diopside) REE metasomatite boron, REE
FKM-132 Armstrong farm, Johnsburg township, Warren Co., NY, USA serendibite, phlogopite B-bearing skarn boron
FKM-133 Zillertal, Austria ilmenite, rutile, Fe-rich magnesite, apatite (F-rich hydroxylapatite), monazite, talc, “mixed layer ~2[talc]-~1[“Al-bearing serpentine”]?” low grade metabasite
FKM-134 unknown locality, but presumed to be from NY serendibite, phlogopite B-bearing metamorphic boron
FKM-135 unknown locality, but presumed to be from Malagasy Republic (Madagascar; possibly Andrahomana?) grandidierite B-bearing metamorphic boron
FKM-136 San Vito quarry, Monte Somma, Vesuvius, Italy meionite altered calcareous ejecta
FKM-137 unknown locality, but presumed to be from Stillwater complex, MT bronzite orthopyroxenite
FKM-138 Spurr mine, Imperial Heights, Baraga Co., MI, USA ilmenite, HREE-rich xenotime, apatite (fluorapatite), chloritoid, mica (muscovite/Fe-rich muscovite), chlorite (chamosite), quartz low grade Fe-rich metamorphic
FKM-139 El Paso Co., CO, USA riebeckite, quartz, perthite alkali granite sodium
FKM-140 Fuka mine, Takahashi City, Okayama prefecture, Japan tilleyite, calcite, perovskite, andradite sanidinite facies metacarbonate boron
FKM-141 Laytonville quarry, Mendocino Co, CA, USA howeite, riebeckite blueschist facies metasediment iron
FKM-142 Galgenberg, near Leoben, Steirmark, Austria chloritoid biotite facies metapelite
FKM-143 Iron Cap mine, Graham Co., AZ, USA johansennite skarn manganese
FKM-144 Hålsjöberg, Sweden wyllieite, scorzalite advanced argillic assemblage phosphorus
FKM-145 Norra Kärr, Småland, Sweden catapleiite, eudialyte nepheline syenite zirconium
FKM-146 Norra Kärr, Småland, Sweden rosenbuschite nepheline syenite zirconium
FKM-147 Laytonville quarry, Mendocino Co, CA, USA apatite (fluorapatite), epidote group (ferriallanite-(La)/allanite-(Nd)), deerite, zussmanite, “K-deficient stilpnomelane”, quartz blueschist facies metasediment
FKM-148 near Gascoyne Junction (Brockman Creek?), WA, Australia spinel group (chromite/magnetite), apatite (fluorapatite), olivine (forsterite), pyroxene (diopside), chlorite (clinochlore), nepheline labeled kimberlite (really olivine nephelinite) chromium
FKM-149 Saranovskoe mine, Ural Mountains, Russia calcite, spinel group (chromite/magnesiochromite), garnet (uvarovite), chlorite (Cr-rich clinochlore) metamorphosed altered chromatite chromium
FKM-151 Øvstebø, Kleppan, Sauland, Hjartdal, Telemark, Norway vesuvianite (cuprian), zoisite (manganian), quartz calc-silicate copper, manganese
FKM-152 Durham Ranch, near Wright, Campbell Co., WY, USA ferroindialite (listed on dealer label but not observed; actually no recognizable minerals present… all glass) sanidinite facies paralava (sedimentary rock partially fused by an adjacent burning coal seam)
FKM-153 Ovrevatnet, Nusfjord, Flakstadøya, Lofoten, Nordland, Norway potassic-chloro-ferro-sadanagaite (listed on dealer label but not observed; actually augite), plagioclase possibly alkali chloride metasomatite of gabbro chlorine, iron
FKM-154 New Amianthus mine, Kaapsche Hoop, Barberton, Mpumalanga province, RSA stichtite-2H, chrysotile, chromite asbestos deposit chromium
FKM-155 Sar-e-Sang, Badakhshan, Afghanistan gypsum, celestite, monazite-(Ce), apatite (fluorapatite), epidote group (allanite-(Ce)), feldspar (K-spar [orthoclase], plagioclase [albite]), scapolite (marialite) meta-evaporite chlorine, sulfur
FKM-156 Malyshevo mine, Ural Mountains, Russia chrysoberyl, mica (biotite [phlogopite]), chlorite (clinochlore) schist intruded by pegmatites (“blackwall”) beryllium
FKM-157 Lovozero massif, Kola peninsula, Russia mangan-neptunite nepheline syenite manganese, lithium
FKM-158 Khit Ostrov, northern Karelia, Russia corundum, ilmenite, rutile, garnet (almandine), epidote group (allanite-(Ce)), amphibole (tschermakite), mica (biotite [phlogopite]), chlorite (clinochlore), feldspar (plagioclase [“oligoclase”]) syenitic gneiss chromium
FKM-159 Orford Nickel mine, St. Denis de Brompton, Québec, Canada grossular, diopside calc-silicate near contact with serpentinized peridotite nickel
FKM-160 Mt. St. Hilaire, Québec, Canada hackmannite, aegirine, nepheline sodalite syenite chlorine
FKM-161 Picuris district, Taos Co., NM, USA actinolite, epidote, garnet amphibolite
FKM-162 Kilbourne Hole, Doña Ana Co., NM, USA spinel group (spinel), olivine (forsterite), pyroxene (enstatite, diopside) mantle peridotite (lherzolite) nodule in basalt chromium
FKM-163 Graves Mountain, Lincoln Co., GA, USA lazulite, quartz advanced argillic assemblage phosphorus
FKM-164 Altay pegmatite, Fuyun Co., Xianjiang Autonomous region, China holmquistite metasomatic margin of Li pegmatite lithium
FKM-165 Yates mine, Otter Lake, Québec, Canada calcite, apatite (fluorapatite), zircon, titanite, epidote group (allanite-(Ce), epidote), pyroxene (diopside), mica (biotite [phlogopite]), scapolite (“wernerite”) skarn or possibly carbonatitic migmatite REE, titanium
FKM-166 Serra de Jacobina, Bahia, Brazil spinel group (chromite), tourmaline (Cr-rich oxy-dravite), mica (Cr-rich muscovite) alteration? associated with Au mineralization chromium, boron
FKM-167 Graves Mountain, Lincoln Co., GA, USA rutile, “Al-oxyhydroxide” (diaspore?, böhmite?), “Fe-oxyhydroxide” (goethite?, lepidocrocite?), alunite supergroup (Ca-rich svanbergite/Sr-rich woodhouseite/Ca-rich schlossmacherite?), zircon, kyanite, pyrophyllite, quartz advanced argillic assemblage aluminum, strontium, phosphorus, sulfur
FKM-168 Picuris range, Glenwoody district, Taos Co., NM, USA zoisite (manganian), vesuvianite, grossular, quartz, apatite (arsenian) calc-silicate manganese, arsenic
FKM-170 Wagholi, India calcite, cavansite, stilbite low temperature cavity filling in basalt (zeolite facies) vanadium
FKM-171 Prabornaz mine, St. Marcel, Italy cerianite-(Ce), hollandite group (Sr-rich hollandite/Sr-rich cryptomelane), barite, V-bearing “gasparite-(La)”, zircon, braunite, macfallite, epidote group (piemontite/REE-rich tweddillite), pyroxene (jadeite, aegirine), mica (reported as “alurgite”: Mn-rich aluminoceladonite, biotite [Mn-rich phlogopite]), feldspar (K-spar [variably Ba-rich orthoclase?], Ba-feldspar [“hyalophane”], plagioclase [albite]) meta manganiferous sediment manganese, REE, Ba, Sr
FKM-172 El Hoyazo, Spain biotite, garnet, sillimanite lower crustal felsic xenolith
FKM-173 N’Chwaning III mine, Kuruman, Northern Cape, South Africa hennomartinite, strontioruizite, cherchiaraite-(Mn), aluminosugilite/sugilite, pyroxene (aegirine), pectolite, amphibole (potassic-richterite/”potassic-magnesio-mangani-afvedsonite”), quartz hydrothermal Mn metasediment manganese, lithium
FKM-174 Načetín, Poběžovice, Plzeň region, Bohemia, Czech Republic ilmenite, spinel group (magnetite), olivine (Mg-rich fayalite), amphibole (ferri-tschermakite, tremolite), serpentine (greenalite), chlorite (clinochlore) meta ferro-dunite? iron
FKM-175 Norra Kärr, Småland, Sweden eckermannite (listed on dealer label but not observed; actually fluoro-leakeite), pectolite nepheline syenite lithium
FKM-176 feldspar quarry, Vysoký Kámen, Krásno, Horní Slavkov, Czech Republic koechlinite, powellite albitized aplite bismuth, molybdenum, uranium
FKM-177 Bordvedaven, Høgtuva, Norway høgtuvaite peraluminous granitic gneiss beryllium
FKM-178 Bjurliden, Norsjö, Västerbotten, Sweden gahnite, sulfides Besshi-type meta hydrothermal exhalite zinc
FKM-179 Crestmore quarry, Riverside Co., CA, USA calcite, apatite (hydroxylapatite [listed on dealer label but not observed; actually P-S-bearing hydroxylellestadite)]), olivine (monticellite), garnet (grossular/andradite) high grade marble phosphorus, sulfur
FKM-180 Ilímaussaq intrusion, Greenland narsarsukite agpaitic intrusion titanium
FKM-181 Ilímaussaq intrusion, Greenland naujakasite agpaitic intrusion
FKM-182 Stolberg by Ludvika, Dalarna, Sweden pyrrhotite, chalcopyrite, sphalerite, galena, hematite, rhodochrosite/calcite, apatite (fluorapatite), olivine (historically Fe-rich tephroite, but may instead be an ordered “MnFe-olivine”), serpentine? (Mg-Fe-rich caryopilite?/”Mn-Fe-rich Mg-caryopilite”?) Mn metasomatite manganese
FKM-183 Fuka mine, Takahashi City, Okayama prefecture, Japan hillebrandtite, spurrite sanidinite facies metacarbonate
FKM-184 Edenville, near Warwick, Orange Co., NY, USA ilmenite, spinel group (spinel), U- and REE-bearing zirconolite, calcite, dolomite, warwickite, olivine (forsterite), humite group (clinohumite), talc, chlorite (clinochlore) high grade marble boron, titanium, zirconium, fluorine
FKM-185 Falotta, Tinzen, Switzerland hematite, apatite (fluorapatite), monazite-(Ce), alunite supergroup (arsenoflorencite-(Ce)), titanite, axinite (tinzenite/manganaxinite), quartz Mn metasomatite manganese, boron, REE, arsenic
FKM-186 Malšov by Kuntá Hora, Czech Republic pentlandite, nickeline, cobaltite, gersdorffite, spinel group (chromite), calcite, apatite (fluorapatite), amphibole (anthophyllite, magnesio-hornblende), talc, mica (biotite [phlogopite]) metamorphosed ultramafic? magnesium, nickel, cobalt, chromium, arsenic
FKM-187 Dehesa, San Diego Co., CA, USA dumortierite, pyrophyllite advanced argillic assemblage boron
FKM-188 Norberg, Västmanland, Sweden fluorite, spinel group (magnetite), calcite, gadolinite-(Nd), epidote group (dollaseite-(Ce)), amphibole (tremolite) REE metasomatite REE, magnesium, beryllium
FKM-189 Loch Scridain area, Isle of Mull, Scotland, UK corundum, ilmenite, spinel group (Fe-rich spinel), pseudobrookite group (griffinite), rutile, mullite, cordierite, feldspar (K-spar [Na-rich sanidine/K-rich anorthoclase], plagioclase [“andesine”/”labradorite”]) sanidinite facies metapelite
FKM-190 Nippyo mine, Awano, Kanuma City, Tochigi Prefecture, Honshu Island, Japan pyrrhotite, sphalerite, gersdorffite, Ni-rich cobaltite, pyrophanite, Mg-rich ilmenite, rhodochrosite, apatite (fluorapatite), hübnerite, garnet (spessartine), pyroxmangite, amphibole (proto-ferro-suenoite), pyrosmalite-(Mn), pyrosmalite-(Fe) hydrothermal Mn metasediment manganese
FKM-191 Andrakaholo, Anosy region, Tuléar province, Malagasy Republic (Madagascar) hibonite, corundum, spinel group (spinel), baddeleyite, zirconolite, thorianite, calcite, apatite (fluorapatite), mica (biotite [phlogopite]), feldspar (plagioclase [anorthite]) sanidinite facies metacarbonate zirconium, thorium, REE
FKM-192 Union Carbide mine, Hot Springs area, AR, USA wollastonite, aegirine nepheline syenite titanium, vanadium
FKM-193 Långban, Sweden cymrite metamorphosed Pb-Ba-Mn metasomite lead, barium, manganese
FKM-194 Webing, near Abtenau, Salzburg, Austria crossite metasomatic(?) blueschist
FKM-195 Sunnyside mine, Silverton, CO, USA pyroxmangite hydrothermal manganese
FKM-196 Namibia cassiterite, quartz, k-spar Sn granite tin
FKM-197 SW Tasmania, Australia stichtite, serpentine altered Cr-rich ultramafic chromium
FKM-198 Black Mtn., Greenwood, ME, USA elbaite, lepidolite, albite, quartz Li pegmatite lithium
FKM-199 Kandesei, Kaokoveld Plateau, Kunene region, Namibia shattuckite hydrothermal Cu deposit copper
FKM-200 Red Cloud fluorite mine, Lincoln Co., NM, USA bastnasite-(Ce), fluorite REE metasomatite REE, fluorine
FKM-201 Schmorrasgrat-Süd, Starlera, Ferrera Valley, Grischun, Switzerland hematite, Mn-rich calcite, garnet (calderite [listed on dealer label but not observed; actually Mn-rich andradite]), pyroxene (aegirine-augite) Mn metasomatite manganese
FKM-202 Sierra de Comechingones, San Luis province, Argentina vanadium, fluorite, hibonite, grossite, diaoyudaoite?/kahlenbergite?, spinel group (V-bearing spinel/Mg-bearing dellagiustaite), perovskite, melilite (gehlenite) sanidinite facies (artificial?) slag?; perhaps a thermite reaction product? purported to be natural vanadium
FKM-203 Sannidal, near Kragerø, Telemark, Norway TiO2 (rutile?), monazite, xenotime, apatite (Cl-bearing hydroxylapatite), epidote group (allanite-(Ce)), amphibole (actinolite), chlorite (clinochlore), quartz alkali chloride metasomatite chlorine, iron, REE
FKM-204 unspecificied locality in the Grenville province, Ontario/Québec, Canada scapolite (meionite), calcite high grade marble
FKM-205 Anosy region, Tuléar province, Malagasy Republic (Madagascar) spinel group (spinel), thorianite, baddeleyite, calcite, apatite (fluorapatite), epidote group (dissakisite-(Ce)), pyroxene (Al-rich diopside), amphibole (fluoro-pargasite), serpentine/chlorite (~(Mg3Al2□)[Si4O10](OH)8), zeolite granulite facies metacarbonate thorium, zirconium, REE
FKM-206 New Idria district, San Benito Co., CA, USA andradite (titanian), perovskite Ti metasomatite titanium
FKM-207 Eveslogchorr Mtn., Khibiny massif, Kola peninsula, Russia ilmenite, pyrochlore group (hydroxycalciopyrochlore?/ fluorcalciopyrochlore?/ hydroxyhydropyrochlore?), titanite, eudialyte group (eudialyte/ferrokentbrooksite), pyroxene (aegirine), lorenzenite, astrophyllite group (astrophyllite), aenigmatite, feldspar (plagioclase [albite]), nepheline nepheline syenite titanium
FKM-208 Ivigtut, Greenland sphalerite, galena, chalcopyrite, pyrrhotite, acanthite, cryolite, hematite, “Fe-oxyhydroxide” (goethite?, lepidocrocite?), siderite, quartz granite pegmatite associated F metasomatite fluorine
FKM-209 Faria mine, Golconda district, Governador Valadares, Minas Gerais, Brazil fluorapatite, bertrandite, albite, chlorite granite pegmatite beryllium
FKM-210 Brumado, Bahia, Brazil Mg-bearing ilmenite, spinel group (Mg-bearing magnetite), Fe-oxy-hydroxide/goethite, magnesite, celestite, zircon, tourmaline (fluor-uvite/dravite), mica (biotite [fluor-phlogopite/phlogopite]) Mg-metasomatite boron, magnesium
FKM-211 Kipawa complex, Villedieu township, Québec, Canada gittinsite, vlasovite, eudialyte eudialyte syenite zirconium
FKM-212 Mount Riiser-Larsen, Enderby Land, Antarctica spinel group (magnetite), sillimanite, osumilite, “K-free osumilite” (= 1 cordierite + 6 quartz), cordierite, pyroxene (Al-rich enstatite), mica (biotite [phlogopite]), 1:1 chlorite-smectite interstratification? (“Mg-dominant tosudite”), feldspar (K-spar [microperthite orthoclase? host], plagioclase [microperthite albite lamellae, albite]), quartz UHT metapelitic granulite magnesium
FKM-213 near Erbareti, Vercelli, Piemonte, Italy opx [reported but not observed], garnet gneiss
FKM-214 Hålsjöberg, Sweden pyrite, rutile, hematite, anhydrite, pretulite, wagnerite, lazulite, apatite (fluorapatite), Sc-bearing zircon, kyanite, quartz advanced argillic assemblage phosphorus, scandium, fluorine, titanium, aluminum
FKM-215 Saranovskoe mine, Ural Mountains, Russia chromian amesite, chromite metamorphosed altered chromatite chromium
FKM-216 Långban, Sweden iwakiite [jacobsite-Q], pyrochlore group (fluorcalcioroméite), Mn-rich calcite, barite, caryinite [listed on dealer label, but not observed], apatite (Pb-rich johnbaumite), pyroxene (augite/aegirine-augite), amphibole (Mn-bearing richterite) metamorphosed Pb-Ba-Mn metasomite manganese, lead, arsenic, antimony
FKM-217 Tanco pegmatite, Bernic Lake, Manitoba, Canada wodginite, microcline, lepidolite Li-Ta-Cs pegmatite manganese, tin, tantalum
FKM-218 (Löhley?), Üdersdorf, Eifel, Germany pyrrhotite, spinel group (Ti-rich magnetite, Fe-rich magnesiochromite), perovskite, magnetoplumbite group (roughly along batiferrite-haggertyite join), calzirtite?, apatite group (Sr-rich fluorapatite), olivine (forsterite), fresnoite, lamprophyllite group (Fe-rich lileyite or Fe+Mg-rich schüllerite?), pyroxene (diopside), mica (biotite [Ba+Ti-rich fluorophlogopite]), nepheline, leucite, sodalite group (haüyne), zeolite (clinoptilolite-Ca?/+unknown) olivine clinopyroxene leucite nephelinite barium, titanium
FKM-219 Anna mine, Horní Planá (by Mariánské Lázně), Czech Republic roscoelite [listed on dealer label but not observed; actually V-bearing chlorite] metasomatite? vanadium, arsenic, nickel, uranium
FKM-220 Pacific Limestone Products quarry (Kalkar quarry), Santa Cruz Co., CA, USA galena, pyrite, uraninite, calcite, gypsum, apatite (fluorapatite/hydroxylapatite), pabstite, pyroxene (diopside), amphibole (tremolite), feldspar (Ba-feldspar [celsian]), quartz metasomatized metacarbonate barium, tin
FKM-221 Little Green Monster mine, Clay Canyon, Fairfield, UT, USA variscite, crandallite, wardite phosphate nodules in limestone phosphorus, scandium
FKM-222 near Mama River, Siberia, Russia lazulite advanced argillic assemblage phosphorus
FKM-223 Kvanefjeld, Ilímaussaq intrusion, Greenland neptunite nepheline syenite manganese, titanium
FKM-224 Poços de Caldas, Minas Gerais, Brazil “orvillite”?, lamprophyllite group (lamprophyllite), rinkite group (along kochite-götzenite join), eudialyte group (eudialyte/ manganoeudialyte/ “Cl-kentbrooksite”), wadeite, (along “[H3O]+-georgechaoite”-georgechaoite join), pyroxene (aegirine), chlorite (chamosite), feldspar (K-spar [orthoclase]), nepheline, zeolite (analcime, natrolite) nepheline syenite manganese, zirconium
FKM-225 Kaznakhtinskii massif, Ust’-Koksa district, Altai Republic, Russia iowaite, chromite, stichtite metamorphosed altered chromatite chromium
FKM-226 Khungtukun massif, Taimyr, Siberia, Russia copper, iron, cohenite, troilite, hematite, ilmenite, spinel group (hercynite), olivine (Fe-rich forsterite/fayalite), pyroxene (Fe-rich pigeonite, Fe-rich augite), chlorite/smectite (“mixed layer chamosite+smectite”?), feldspar (K-spar [sanidine?/orthoclase?], plagioclase [“labradorite”/”andesine”]) mafic (gabbro/basalt) intrusion into coal seam iron, carbon
FKM-227 Eveslogchorr Mtn., Khibiny massif, Kola Peninsula, Russia astrophyllite, microcline, nepheline nepheline syenite iron, titanium, niobium, zirconium
FKM-228 Varenche mine, Saint-Barthélemy, Nus, Aosta valley, Italy hematite, crichtonite group (“M2Mn-senaite”), rutile, Mn-rich calcite, kutnohorite, gasparite-(Ce), HREE-rich chernovite-(Y), garnet (Mn-rich berzeliite/manganberzeliite), “Na2Ca3Mn3[AsO4]4(OH)2 . 6H2O”?, apatite (fluorapatite, As-bearing fluorapatite/As-bearing hydroxylapatite), As-bearing titanite, talc, quartz, feldspar (plagioclase [albite]) Mn metasomatite manganese, arsenic, titanium
FKM-229 Panj River gorge, ~5 km N of Vogde,Tajikistan almandine, biotite high grade melanosomic restite in migmatitic leucogranite
FKM-230 Malagasy Republic (Madagascar; probably Ampanihy rhodonite deposit, Tuléar province) takanelite, rhodochrosite, garnet (spessartine), titanite, pyroxene (“schefferite” [Mn-rich augite]), rhodonite group (“magnesiorhodonite”?), amphibole (tremolite) Mn metasomatite manganese
FKM-231 Mendes Pimentel, Minas Gerais, Brazil brazilianite, microcline granite pegmatite phosphorus, beryllium
FKM-232 India (reportedly Ganjam, Orissa) corundum, cordierite, sillimanite, kyanite amphibolite to granulite metapelite chromium
FKM-233 India (reportedly from the Mysore district) rutile, spinel [listed on dealer label but not observed; actually garnet], apatite group (fluorapatite), epidote group (allanite-(Ce)), garnet (almandine), mica (biotite [phlogopite]), feldspar (plagioclase [“oligoclase”]) amphibolite chromium
FKM-234 Russia (probably Ekaterinburg, Urals region) pyrophanite, pyrolusite? (or other “Mn-oxide”/”Mn-oxyhydroxide”), rhodochrosite, apatite (fluorapatite), braunite, rhodonite group (vittinkiite/rhodonite) Mn metasomatite manganese
FKM-235 Summit Rock, Klamath Co., OR, USA spinel group (magnetite), hematite, ilmenite, rutile?, apatite group (fluorapatite), olivine (Fe-rich forsterite), zircon, pyroxene (“hypersthene”, pigeonite?, augite), feldspar (plagioclase [“bytownite”/”labradorite”/”andesine”]) residual melt ± vapor phase growth in basaltic andesite iron, titanium
FKM-236 Jakobsberg, Varmland, Sweden barylite, hausmannite, calcite metamorphosed Pb-Ba-Mn metasomite barium, beryllium, manganese
FKM-237 Magnet Cove, Hot Springs Co., AR, USA sphalerite, pyrite/Co-bearing pyrite, fluorite, Mn-rich ilmenite, Ti-tich magnetite, loparite-(Ce), bastnäsite-(Ce), apatite (fluorapatite), monazite-(Ce), titanite, pyroxene (diopside/aegirine/aegirine-augite), amphibole (~{fluoro-ferri-nybøite}-{ferri-obertiite} join/~{fluoro-magnesio-arfvedsonite}-{ferri-katophorite} join), mica (muscovite, biotite [fluoro-phlogopite/phlogopite/annite]), feldspar (K-spar [orthoclase in mesoperthite], plagioclase [albite in mesoperthite]), zeolite (analcime) nepheline(?) analcime syenite titanium, REE, fluorine, sodium
FKM-238 Pacific Limestone Products quarry (Kalkar quarry), Santa Cruz Co., CA, USA sphalerite, galena, pyrrhotite, molybdenite (not verified), gersdorffite, calcite, dolomite, apatite (fluorapatite), barite, olivine (forsterite), zircon, “cherchiaraite-(VIMgIVAl)”?, pyroxene (diopside), amphibole (tremolite), mica (kinoshitalite), serpentine metasomatized metacarbonate nickel, arsenic, molybdenum, barium
FKM-239 Raidlgraben, near Werfen, Salzburg, Austria lazulite quartz veins phosphorus, scandium
FKM-240 Obsidian Cliffs, 8 km S of Mackenzie Pass, Lane Co., OR, USA osumilite vapor phase growth in volcanic
FKM-241 Lågendalen, Near Larvik, Norway catapleiite, aegirine, nepheline nepheline syenite zirconium
FKM-242 Nordmark, Sweden (suggested as from the “Kitteln ‘2’ mine”?) Mg-rich iwakiite [Mg-rich jacobsite-Q], calcite, dolomite, norsethite, barytocalcite, orthopinakiolite [listed on dealer label but not observed; actually Fe-rich fredrikssonite], barite, adelite, apatite (As-bearing hydroxylapatite), humite group (Mn-bearing hydroxylclinohumite), mica (kinoshitalite) metamorphosed Ba-Mn metasomite manganese, boron, arsenic, barium
FKM-243 Bald Knob, Sparta, Alleghany Co., NC, USA linnaeite, cobaltite, spinel group (galaxite, jacobsite), rhodochrosite, kutnohorite, apatite (fluorapatite), humite group (alleghanyite, manganhumite), serpentine (kellyite), “Ca-stilpnomelane” Mn metasomatite manganese, cobalt, arsenic
FKM-244 Gem mine, San Benito Co., CA, USA benitoite, neptunite, natrolite metasomatic veins in serpentinite barium, titanium, manganese
FKM-245 Salem Neck, Essex Co., MA, USA nepheline, biotite nepheline syenite
FKM-246 Rapid Creek, Dawson mining district, Yukon, Canada lazulite, wardite, augelite metasomatized sedimentary phosphorite phosphorus
FKM-247 Iodake volcano, Satsuma-Iwojima, Japan roedderite vapor phase growth in volcanic
FKM-248 Portland Point, Tompkins Co., NY, USA phlogopite, olivine mica peridotite
FKM-249 near Red Hill, Carroll Co., NH, USA ilmenite, spinel group (magnetite), pyrochlore group (hydroxykenopyrochlore?), aeschynite-(Y), bastnäsite-(Ce), monazite-(Ce), apatite (fluorapatite), pyroxene (aegirine-augite), amphibole (ferro-ferri-katophorite/ferro-ferri-taramite), mica (biotite [annite]), feldspar (K-spar [orthoclase in mesoperthite], plagioclase [albite in mesoperthite]), nepheline, sodalite [listed on dealer label but not observed in hand sample or thin section], cancrinite, zeolite (analcime) cancrinite nepheline syenite uranium, REE
FKM-250 Murfreesboro, Pike Co., AR, USA phlogopite, cpx, olivine mica augite peridotite
FKM-251 Mont Saint-Gregoire (Mont Johnson), Québec, Canada pyrrhotite, pyrite, spinel group (magnetite), ilmenite, baddeleyite, zirconolite, apatite (fluorapatite), Zr-bearing titanite, pyroxene (augite), amphibole (ferri-kaersutite), mica (Ti+Fe3+-rich biotite), feldspar (K-spar [orthoclase], plagioclase [“andesine”/”oligoclase”]), nepheline, zeolite (analcime, gismondine?) essexite (nepheline monzodiorite) titanium, zirconium
FKM-252 reportedly Kyiv, Ukraine boracite [listed on dealer label but not observed, nor expected], spinel group (magnesiochromite), olivine (forsterite), pyroxene (diopside), low-z Mg sheet(?) silicate chromatite chromium
FKM-253 Dara-i-Pioz, Tajikistan stillwellite-(Ce), quartz, aegirine, microcline alkali granite boron, REE, cesium
FKM-254 Solongo B deposit, Buryatia, Transbaikal region, Russia frolovite, olshanskyite borate skarn boron
FKM-255 Nežilovo, Veles, Macedonia zincohögbomite high grade metasomatized marble zinc, barium, lead
FKM-256 E. Pedriza massif, Sierra de Guadarrama, Spain “Fe-oxide”/”Fe-oxyhydroxide”, apatite (fluorapatite), zircon, titanite, epidote group (ferriallanite-(Ce)), pyroxene (aegirine/aegirine-augite), amphibole (“ferri-whittakerite” [listed on dealer label but now reclassified as ferri-leakeite; actually variably zoned ferri-leakeite/ferri-fluoro-leakeite/ferri-pedrizite/ferri-fluoro-pedrizite]), mica (biotite, tainiolite), quartz, feldspar (K-spar [orthoclase?], plagioclase [albite]) Na+Li-metasomatized epi-syenite lithium
FKM-257 Srednyaya Padma U-V deposit, south Karelia, Russia galena, sphalerite, chalcopyrite, pyrite, Cr-rich “leucoxene”?, [Cr+V]-rich hematite, spinel group (Zn-rich chromite/Fe-rich zincochromite), [Cr+V]-rich goethite, dolomite, barite, coffinite?, mica (chromceladonite, “vanadioceladonite”, “vanadioceladonite”-phlogopite join), quartz metamorphosed U-rollfront? chromium, vanadium, zinc, uranium
FKM-258 Case Parigi, Dora Maira massif, Martiniana Po, Italy rutile, apatite (fluorapatite), garnet (pyrope), Zr+P-bearing ellenbergerite, kyanite, amphibole (“sodic-gedrite” or alternatively composition on the {gedrite}-{“rootname 1”} join, composition on the {glaucophane}-{“rootname 7”} join), talc, chlorite (clinochlore), smectite (or possibly wonesite?), quartz? eclogite facies whiteschist zirconium, phosphorus, titanium, magnesium
FKM-259 Illutalik Island, Narsaq, Kujalleq, Greenland emeleusite, narsarsukite peralkaline trachyite dike lithium, titanium
FKM-260 Hørtekollen, Sylling, Lier, Buskerud, Norway helvine, fluorite granite-hosted greisen manganese, beryllium, fluorine
FKM-261 stone quarries, ~70 SE of Amman, Lisdan-Siwaga fault, Hashem region, Jordan volkonskoite, diopside sanidinite facies pyrometamorphic marble chromium
FKM-262 Kovdor phlogopite mine (Slyuda mine), Murmansk region, Kola Peninsula, Russia pyrrhotite, spinel group (magnetite), olivine (forsterite, monticellite), garnet (andradite), melilite (åkermanite), pyroxene (diopside), wollastonite, xonotlite, mica (biotite [phlogopite]) olivine melilitolite
FKM-263 Tashelginskoye mine, Tashelga River, western Siberia, Russia corundum, spinel group (magnetite, hercynite), hibonite, tashelgite, calcite, apatite (fluorapatite), monazite-(Ce), garnet (grossular), vesuvianite granulite facies aluminous marble aluminum
FKM-264 Kovdor massif, Murmansk region, Kola Peninsula, Russia calcite, apatite (hydroxylapatite), amphibole (magnesio-hastingsite), mica (biotite [phlogopite]) carbonatite-associated alkaline ultramafic
FKM-265 Kovdor massif, Murmansk region, Kola Peninsula, Russia pyrrhotite, pentlandite, spinel group (magnetite), perovskite group (perovskite), calcite, apatite (hydroxylapatite), garnet (“hydro-andradite”), pyroxene (diopside), amphibole (katophorite [listed as “magnesio-katophorite” on dealer label but not observed; actually magnesio-hastingsite]) carbonatite-associated alkaline ultramafic
FKM-266 Gusdal Aheim, Almklovdalen, Norway galena, pyrrhotite, pentlandite, rutile, garnet (pyrope), pyroxene (enstatite, diopside), amphibole (magnesio-hornblende) amphibolized garnet websterite chromium, nickel
FKM-267 ~50 km NW of Petropavlovsk-Kamchatsky, Russia piemontite meta-Mn-metasomatite manganese
FKM-268 Hazrat Saeed, Koksha Valley, Badakhshan, Afghanistan corundum, “Fe-oxyhydroxide”, uraninite, dolomite, zircon, tourmaline (fluor-dravite [listed on dealer label but not observed; actually dravite/oxy-dravite/oxy-uvite]), mica (biotite [phlogopite]), chlorite (clinochlore, “mixed [Fe+Mg+Al]-chlorite”) schist? (blackwall of B-bearing pegmatite?) magnesium, boron
FKM-269 Bikkulovskoe deposit, southern Urals, Russia pumpellyite-Mn2+, piemontite, andradite, caryopilite low grade meta-Mn-metasomatite manganese
FKM-270 Tashelga River, western Siberia, Russia tashelgite, hibonite, calcite “calc-skarnoid”
FKM-271 Hatrurim Formation, Negev, Israel nagelschmidtite, andradite, melilite, kalsilite, wollastonite, flameite sanidinite facies pyrometamorphic marble phosphorus, titanium
FKM-272 Ufalei Ni deposit, southern Urals, Russia pecoraite metasomatized serpentinite nickel
FKM-273 Hålsjöberg, Sweden trolleite, kyanite, scorzalite, berlinite, burangaite, rutile advanced argillic assemblage aluminum, phosphorus
FKM-274 Vishnyakovskoe Rb-Ta deposit, Prebaikalia, eastern Siberia, Russia wodginite, muscovite, microcline Rb-Ta granite pegmatite manganese, tin, rubidium, tantalum, cesium
FKM-275 Union Carbide mine, Hot Springs area, AR, USA miserite, wollastonite, aegirine nepheline syenite titanium, vanadium
FKM-276 American #1 talc mine, Balmat-Edwards, NY, USA apatite (fluorapatite), zircon, tourmaline (chromium-dravite [listed on dealer label but not observed; actually oxy-chromium-dravite]), amphibole (Cr-bearing tremolite), quartz granulite facies metasomatic metacarbonate chromium
FKM-277 Cervadone Mtn., Val d’Osola, Italy tilasite quartz veins in two-mica leucocratic gneiss arsenic
FKM-278 Dara-i-Pioz, Tajikistan baratovite alkali granite lithium, boron, REE, cesium
FKM-279 Sterling Hill, Sussex Co., NJ, USA sussexite, franklinite high grade Zn-Mn-bearing marble manganese, boron, zinc
FKM-280 Dara-i-Pioz, Tajikistan turkestanite alkali granite thorium, REE
FKM-281 Uvil’dy Lake, south Urals, Russia zircon, [As+Sb]-bearing holtite, tourmaline (oxy-schorl/”Fe-bearing oxy-olenite”), feldspar (K-spar [perthite orthoclase host, orthoclase], plagioclase [perthite albite lamellae]), quartz dumortierite granite pegmatite boron, aluminum, tantalum, arsenic, antimony
FKM-282 Eikern, Buskerud, Norway galena, löllingite, pyrochlore group (fluorcalciopyrochlore), fluorite, Hf-rich zircon, “OH-gadolinite-(Y)”, mica (biotite), feldspar (K-spar [perthite orthoclase host, orthoclase], plagioclase [perthite albite? lamellae, “oligoclase”]), quartz, helvine [“helvite”] group (genthelvite) granite chilled margin zinc, beryllium, niobium, arsenic, yttrium, HREE, manganese
FKM-283 Tazheran massif, Baikal region, Russia Co-bearing pentlandite, geikielite, spinel group (magnetite, spinel, qandilite), “limonite”, U-bearing calzirtite, calcite, apatite (fluorapatite), olivine (forsterite), serpentine high grade magnesian marble, but also possibly carbonatite magnesium, titanium, zirconium, nickel, cobalt
FKM-284 Titovskoe B deposit, Tas-Khayakhtakh Range, Polar Yakutia, Sakha, Russia olshanskyite, sakhaite, magnetite high grade B-bearing skarn boron
FKM-285 Cava Seula, Locatelli, Baveno, Italy polycrase-(Y), aeschynite-(Y), fluorite granite yttrium, niobium, fluorine, uranium
FKM-286 Norra Kärr, Småland, Sweden rosenbuschite, fluorite nepheline syenite zirconium
FKM-287 “Gratinern Hill, Ontario”(?), Canada kornerupine/prismatine B-bearing granulite facies metapelite boron
FKM-288 Sneynoe, Eastern Sajan, Siberia, Russia phenakite likely blackwall adjacent to Be-bearing granitoid beryllium
FKM-289 Luhr Hill, Yerington district, Lyon Co., NV, USA oxy-dravite, phlogopite Mg-B-metasomatite boron
FKM-290 Mundarara mine, Arusha area, (27 km W of similar Longido) Tanzania spinel group (Cr-rich spinel/Cr-rich hercynite/Al-rich chromite), corundum, titanite, zoisite, epidote group (Fe-rich clinozoisite/epidote), amphibole (pargasite/alternatively sadanagaite), chlorite (clinochlore, amesite), “aluminous vermiculite”? high pressure “amphibolite” (meta-gabbroid) chromium
FKM-291 Mt. Wheeler Mine, White Pine Co., NV, USA bertrandite Be-metasomatite beryllium
FKM-292 Dobrova, Dravograd, Slovenia rutile, Al2O[SiO4] (unknown polymorph), tourmaline (dravite), mica (muscovite, paragonite) pelitic schist boron
FKM-293 Fountain quarry, Fountain, Pitt Co., NC, USA. bafertisite, aegirine, richterite peralkaline granite barium, titanium
FKM-294 Hålsjöberg, Sweden lazulite advanced argillic assemblage aluminum, phosphorus
FKM-295 Johnsburg township, Warren Co., NY, USA pyrite, barite, apatite (fluorapatite), pyroxene (diopside), amphibole (pargasite), serendibite, mica (biotite [Ba-rich phlogopite]), feldspar (Ba-feldspar [“hyalophane”], plagioclase [albite]) granulite facies B-bearing magnesian skarn boron, barium
FKM-296 Bukov Mine, Rožná deposit, Czech Republic berzelianite hydrothermal vein copper, selenium, uranium
FKM-297 Gentil claim, Mendes Pimentel, Minas Gerais, Brazil phosphosiderite, triphylite granite pegmatite lithium, iron, phosphorus
FKM-298 Oka, Québec, Canada galena, pyrrhotite, spinel group (magnetite), perovskite group (latrappite [listed on dealer label but not observed; actually [Na+Nb]-rich perovskite]), pyrochlore group (“uranopyrochlore” [actually presumably U-rich oxycalciopyrochlore or U-rich hydroxycalciopyrochlore), calcite, apatite (hydroxylapatite/fluorapatite boundary, britholite-(Ce)), olivine (monticellite), niocalite?, mica (biotite [Ba-rich phlogopite]) carbonatite niobium
FKM-299 Taguchi mine, Aichi, Japan pyrite, rhodochrosite, barite, yoshimuraite, nambulite, rhodonite group (vittinkiite/”ferrovittinkiite”/”magnesiovittinkiite” boundary composition), amphibole (richterite [listed in references but not observed; actually ~{ferri-ghoseite}-hjalmarite join]), quartz, orthoclase, possible Ba-rich zeolite? high grade meta Mn-metasomatite manganese, barium, titanium, phosphorus
FKM-300 Arrow Junction Quarry, Queenstown-Lakes District, Otago Region, South Island, New Zealand ardennite-(As), piemontite low grade meta Mn-metasomatite manganese, arsenic
FKM-301 Esquire No. 7 claim, Big Creek, Rush Creek deposit, Fresno Co., CA, USA muirite, sanbornite Ba-metasomatite barium, titanium, chlorine
FKM-302 Kilbride, Isle of Skye, Scotland, UK harkerite, monticellite high grade metasomatized marble (“skarn”) boron
FKM-303 Franklin, Sussex Co., NJ, USA spinel group (franklinite), calcite, barite, apatite (johnbaumite), willemite, garnet (andradite, “hydro-andradite”), clinohedrite, melilite (hardystonite), pyroxene (diopside/johannsenite/petedunnite solid solution [“jeffersonite”]), bustamite high grade Pb-bearing Zn-Mn metasomatite lead, zinc
FKM-304 Sterling Hill, Ogdensburg, Sussex Co., NJ, USA kraisslite, franklinite high grade Zn-Mn metasomatite manganese, zinc, arsenic
FKM-305 Água de Pau Massif, São Miguel Island, Azores, Portugal ilmenite, spinel group (magnetite), pyrochlore (fluorcalciopyrochore), apatite (fluorapatite), zircon, chevkinite-(Ce), pyroxene (diopside), amphibole (ferro-ferri-fluoro-katophorite/[fluoro-pargasite or alternatively fluoro-edenite]), mica (Ti-rich biotite), feldspar (alkali feldspar [“Na-sanidine” or alternatively anorthoclase?]), “alkali silicate”, quartz quartz syenite fluorine, niobium, REE
FKM-306 Semiostrov’e, Keivy Mountains, Murmansk Oblast, Russia rutile, ilmenite, apatite (fluorapatite), monazite-(Ce), xenotime-(Y), zircon, staurolite, mica (muscovite, biotite), chlorite (clinochlore), feldspar (plagioclase [“oligoclase”]), quartz pelitic schist vanadium
FKM-307 Mautia Hill, Tanzania rutile, hematite, “green” yoderite, zircon, amphibole (anthophyllite-gedrite join), talc eclogite facies whiteschist magnesium
FKM-308 labeled as “East Transbaikalia”, but probably Yoko-Dovyrensky Massif, Prebaikalia (Pribaikal’e), Russia perovskite group (perovskite), calcite, apatite (hydroxylapatite), pyroxene (“blue” diopside), wollastonite?, foshagite high-grade calc-silicate skarn
FKM-309 Kola Peninsula, Russia pyrrhotite, chalcopyrite, pentlandite, argentopentlandite, gersdorffite, violarite?, rutile, kyanite, [Zn+Cr]-rich staurolite, kaolinite, mica (Cr-bearing muscovite [“fuchsite”], biotite), quartz, feldspar (plagioclase [albite]) Al-rich schist chromium
FKM-310 Champion Mine, White Mts, Mono Co., CA, USA svanbergite meta advanced argillic assemblage strontium, phosphorus, sulfur, aluminum
FKM-311 Snillfjord, Krokstadøra, Trondheim, Sør-Trondelag, Norway thulite (zoisite or clinozoisite) Mn-bearing calc-silicate manganese
FKM-312 MQ Granite AS quarry, Gaskkabeaivári, Kautokeino, Finnmark, Norway Co-bearing pyrite, monazite-(Ce), zircon, mica (Cr-bearing muscovite [“fuchsite”], Cr-bearing biotite), feldspar (K-spar [microcline]), quartz quartzite chromium
FKM-313 In den Dellen quarry, Laacher See volcano, Eifel, Germany spinel group (magnetite), apatite ([REE+Si]-rich fluorapatite, [REE+Si]-rich hydroxylapatite), titanite, pyroxene (diopside/hedenbergite), feldspar (alkali feldspar [Na-rich sanidine], plagioclase [K-rich “oligoclase”]), sodalite group (haüyne), silicate melt inclusions? haüyne phonolite sulfur, manganese, REE
FKM-314 Ali Abad, Hunza Valley, Gilgit District, Gilgit-Baltistan, Pakistan pargasite, spinel, corundum high grade marble chromium
FKM-315 Kipawa complex, Villedieu township, Québec, Canada fluorite, rinkite-(Y) [found on an accompanying sample but not observed in this thin section; here actually hiortdahlite and mosandrite-(Ce)], pyroxene (omphacite/aegirine-augite), feldspar (K-spar [microcline], plagioclase [albite]) eudialyte syenite
(metamorphosed)
REE
FKM-316 Saranovskoe mine, Ural Mountains, Russia spinel group (magnesiochromite/chromite), apatite (F-rich hydroxylapatite), garnet (Cr-rich grossular/Al-rich uvarovite), pumpellyite group (Cr-rich pumpellyite-(Mg)/Al-rich shuiskite-(Mg)), chlorite (Cr-rich clinochlore) metamorphosed altered chromatite chromium
FKM-317 Franklin, Sussex Co., NJ, USA chlorophoenicite high grade Zn-Mn metasomatite zinc, magnesium, manganese, arsenic
FKM-318 Ilmen Natural Reserve, Chelyabinsk Oblast, Russia corundum, biotite, orthoclase, monazite desilicified granite yttrium, REE, niobium
FKM-319 Vasin-Myl’k Mt, Voron’i Tundry, Kola Peninsula, Russia fairfieldite phosphate-enriched LCT granite pegmatite phosphorus, manganese
FKM-320 Koashva Mt, Khibiny Massif, Kola Peninsula, Russia paraumbite nepheline syenite zirconium
FKM-321 Hatrurim Formation, Negev, Israel kalsilite sanidinite facies pyrometamorphic marble
FKM-322 (possibly Malyshevskaya pit), Izumrudnye Kopi area, Malyshevo, Yekaterinburg, Sverdlovsk Oblast, Russia margarite (possibly beryllian) possible blackwall between granite and ? beryllium
FKM-323 Rasvumchorr Mt
Khibiny Massif, Kola Peninsula, Russia
delhayelite nepheline syenite chlorine, sulfur
FKM-324 Jakobsberg, Varmland, Sweden ganomalite, phlogopite metamorphosed Pb-Ba-Mn metasomite lead, manganese
FKM-325 Popigai impact crater, Krasnoyarsk Krai, Russia maskelynite (“plagioclase glass”) impact-associated UHT and UHP metasediments
FKM-326 Kukh-i-Lal, Pyandzh River Valley, Gorno-Badakhshan, Tajikistan clinohumite, spinel high grade marble fluorine
FKM-327 Area Novo-Dzhaginskoe deposit
Omsukchan, Ducat District, Magadanskaya Oblast’, Far-Eastern Russia
dumortierite advanced argillic+B alteration of tin-silver veins? boron
FKM-328 Trikorfo area, Theologos, Thasos, East Macedonia and Thrace, Greece hematite, rutile, apatite (fluorapatite), monazite-(Ce), [Mn+Fe]-bearing andalusite (“viridine”), sillimanite, mica (biotite [phlogopite]), chlorite (clinochlore), feldspar (plagioclase [“oligoclase”]), quartz manganiferous metapelitic gneiss manganese
FKM-329 Prabornaz mine, St. Marcel, Italy violane (Mn-rich diopside/omphacite) meta manganiferous sediment manganese
FKM-330 Mt. Cavalluccio, Sacrofano Caldera, Campagnano, Rome, Lazio, Italy mottanaite-(Ce) feldspathoidal alkali-syenite ejectum REE, boron, beryllium
FKM-331 Cerchiara Mine, Borghetto Vara, Vara Valley, La Spezia Province, Liguria, Italy calcite, braunite, noelbensonite, pyroxene (namansilite), orientite, amphibole (Mn-bearing richterite), “manganipyrophyllite”, feldspar (K-spar), quartz, “Ba-bostwickite”? meta manganiferous sediment manganese
FKM-332 near Lewistown, Fergus Co., MT, USA pyrrhotite, chalcopyrite, zircon, titanite, epidote group (mukhinite [listed on label but not observed; actually Cr-bearing allanite-(Ce)/REE-bearing “tawmawite”/Cr-bearing clinozoisite], clinozoisite), amphibole (Cr-rich tremolite), feldspar (K-spar, plagioclase [albite]), quartz, scapolite (marialite) metasomatized evaporite-bearing argillite? chromium, REE, vanadium, chlorine
FKM-333 Aghbar Mine, Bou Azzer District, Ouarzazate Province, Drâa-Tafilalet, Morocco roselite, calcite five element suite cobalt arsenide veins cobalt, arsenic
FKM-334 N’Chwaning II Mine, Kuruman, Kalahari manganese field, Northern Cape, South Africa hausmannite, barite, apatite (Sr-bearing hydroxylapatite), garnet (henmiterierite), braunite, vesuvianite group (Mn-bearing cyprine/Cu-bearing manganvesuvianite) hydrothermal Mn metasediment manganese, copper
FKM-335 Le Novelle Quarry, Ercolano, Monte Somma, Somma-Vesuvius Complex, Naples, Campania, Italy pyrrhotite, “Fe-oxide”/”Fe-oxyhydroxide”, calcite, apatite (fluorapatite), zircon, titanite, pyroxene (diopside), amphibole (hastingsite, potassic-hastingsite), mica (biotite), feldspar (K-spar [sanidine], plagioclase [“oligoclase”/”andesine”]), nepheline, cancrinite group (davyne?) metasomatized sanidinite facies ejectum chlorine
FKM-336 Le Coreux, Salmchâteau, Vielsalm, Stavelot Massif, Belgium hematite, cerianite-(Ce), wakefieldite-(Ce)?, braunite, kanonaite/Mn-bearing andalusite (“viridine”), ardennite-(V)?, muscovite, quartz manganiferous metapelitic schist manganese, REE, vanadium, arsenic
FKM-337 Graulay, Hillesheim, Vulkaneifel, Rhineland-Palatinate, Germany melilite, nepheline, perovskite, magnetite, apatite late stage cavity filling in nephelinite titanium
FKM-338 Hpakant-Tawmaw jade tract, Kachin state, Burma jadeite blueschist metasomatite chromium
FKM-339 Ogilby, CA, USA, more precisely Cargo Muchacho Mtns, CA, USA pyrophyllite, kyanite, lazulite/scorzalite meta advanced argillic assemblage phosphorus
FKM-340 unknown locality, but presumably eastern Turkey awaruite, spinel group (magnesiochromite/chromite), chlorite (Cr-bearing clinochlore “kämmererite”) metamorphosed altered chromatite chromium
FKM-341 (sub-locality #4) Mautia Hill, Tanzania hematite, zircon, titanite, epidote group (Mn-rich epidote/Fe-rich piemontite), pyroxene (diopside), amphibole (edenite [listed on dealer label but not observed; actually tremolite]), quartz whiteschist-associated UHP calc-silicate manganese
FKM-342 boulder field E of Ol Doinyo Lengai volcano, Tanzania combeite, nepheline, wollastonite, aegirine-augite carbonatite-associated nephelinite sodium
FKM-343 White Cloud pegmatite, South Platte, CO, USA thalénite-(Y), yttrofluorite, allanite-(Ce), bastnäsite-(Ce) REE-bearing granite pegmatite yttrium, fluorine, REE
FKM-344 Gun claim, near Wilson Lake and Itsy Mountain, Yukon, Canada muirite, celsian, sanbornite Ba-Ti-B-metasomatite chlorine, barium, titanium
FKM-345 high Pellice Valley, Piedmont, Italy chromian omphacite jadeitite chromium
FKM-346 Mont Saint-Hilaire, Québec, Canada normandite, nepheline, aegirine, eudialyte nepheline syenite manganese, titanium
FKM-347 Lleida (Lérida), Catalonia, Spain aerinite zeolite facies altered mafic rock
FKM-348 Gjerdingen, Norway gagarinite-(Y) alkali “soda-granite” fluorine, yttrium
FKM-349 Bellerberg volcano, Ettringen, Eifel Volcanic Fields, Germany calcio-olivine, portlandite sanidinite facies metacarbonate ejectum
FKM-350 Xianghualing mine, Linwu Co., Chenzhou, Hunan, China hsianghualite, phlogopite, liberite, chrysoberyl, magnesiotaaffeite, zinconigerite, pyrite, chalcopyrite greisen-like skarn in at limestone-granite contact beryllium, lithium, zinc
FKM-351 Farbište, Poniky, Banská Bystrica region, Slovakia tyrolite, azurite oxidized zone of rhyolite-hosted Cu-As deposit copper, arsenic
FKM-352 Taseq slope, Ilímaussaq complex, Narsaq, Kujalleq, Greenland tugtupite, analcime agpaitic nepheline syenite beryllium
FKM-353 Långban, Sweden manganberzeliite, richterite metamorphosed Pb-Ba-Mn metasomite manganese, arsenic
FKM-354 Akpınar, near Harmancık, Tavşanlı Zone, Turkey manganian jadeite, phlogopite, orthoclase, quartz, epidote, chloritoid jadeitite manganese
FKM-355 Fuka mine, Takahashi City, Okayama prefecture, Japan morimotoite, wollastonite sanidinite facies metacarbonate titanium
FKM-356 Twin Lakes limestone deposit, Fresno Co., California, USA hydroxylclinohumite, geikielite, dolomite, calcite, spinel high grade dolomitic marble
FKM-357 Big Creek, Rush Creek deposit, Fresno Co., California, USA fencooperite, titantaramellite Ba-Ti-B-metasomatite barium, titanium
FKM-358 Gozaisho mine, Iwaki City, Fukushima Prefecture, Japan nambulite, rhodonite, iwakiite meta manganiferous sediment manganese, lithium, arsenic
FKM-359 Allt a’Mhuillin, Loch Borralan, Assynt, Scotland, UK vishnevite, orthoclase, biotite, melanite andradite garnet, nepheline, “pseudoleucite” nepheline syenite “borolanite” sulfur, titanium
FKM-360 “Rosalinda occurrence”, near Tambo Colorado, Pisco province, Ica, Peru scapolite, Mn-bearing epidote/piemontite, calcite, pyrite, titanite alkali-chloride metasomatite chlorine, manganese
FKM-361 Liebenbergite slag dump, Lavrion slag localities, Attica, Greece liebenbergite, schäferite, trevorite, haüyne, whitlockite historic metallurgical slag nickel, vanadium
FKM-362 Kedrovyi alkaline massif, Murunskii Massif, confluence of the Chara & Tokko Rivers, Aldan Shield, Russia Sr-bearing potassic-richterite K-fenite potassium, strontium
FKM-363 Kedrovyi alkaline massif, Murunskii Massif, confluence of the Chara & Tokko Rivers, Aldan Shield, Russia Sr-bearing potassic-richterite K-fenite potassium, strontium
FKM-364 Kovdor Zheleznyi Mine (Iron Mine), Murmansk region, Kola Peninsula, Russia clinohumite, phlogopite, magnetite serpentinized carbonatite-associated “olivinite”
FKM-365 Dora Maira, Italy coesite (replaced by quartz), pyrope eclogite facies whiteschist
FKM-366 northern Ladoga Region, Karelia, Russia fluoro-edenite marble fluorine
FKM-367 Tazheran massif, Baikal region, Russia kirschsteinite skarn xenoliths in alkali syenite
FKM-368 Östanmoss mine, Norberg, Västmanland, Sweden dollaseite-(Ce), tremolite REE metasomatite REE
FKM-369 Slyudyanka, Lake Baikal area, Russia tremolite, diopside marble chromium
FKM-370 Malmkärra mine, Norberg, Västmanland, Sweden fluorbritholite-(Ce), västmanlandite-(Ce), allanite-(Ce) REE metasomatite REE
FKM-371 Tayezhnoe, Yakutia, Russia serendibite, diopside, spinel granulite facies Fe-B-bearing skarn iron, boron
FKM-372 Vielsalm, Stavelot Massif, Belgium ardennite-(As), quartz manganiferous metapelitic schist manganese, arsenic, vanadium
FKM-373 Saranovskoe mine, Ural Mountains, Russia clinochlore, titanite, uvarovite, magnesiochromite/chromite metamorphosed altered chromatite chromium
FKM-374 Dyadina Gora, Karelia, Russia gedrite, magnesiohögbomite, sapphirine, cordierite high grade aluminous amphibolite
FKM-375 (sub-locality #1) Mautia Hill, Tanzania magnesio-hornblende, gedrite, yoderite, talc, quartz whiteschist-associated UHP metamorphic
FKM-376 (sub-locality #2) Mautia Hill, Tanzania magnesio-fluoro-hornblende, anthophyllite whiteschist-associated UHP metamorphic
FKM-377 Fuka mine, Fuka, Bicchu-cho, Takahashi City, Okayama prefecture, Japan henmilite sanidinite facies metacarbonate copper, boron
FKM-378 Silberbach, near Hof, Bavaria, Germany garnet, Cr-bearing omphacite mafic eclogite chromium
FKM-379 Bonnet Island, Parry Sound, Ontario, Canada menzerite-(Y), Y-bearing almandine, oligoclase, allanite, augite, ferrosilite felsic granulite yttrium
FKM-380 Utö, Sweden holmquistite, biotite, quartz pegmatite-associated blackwall lithium
FKM-381 3 km SW of Kansi, Hpakant-Tawmaw jade tract, Kachin state, Burma kosmochlor, Cr-bearing jadeite, Cr-bearing eckermannite blueschist jadeitite chromium
FKM-382 Durham Ranch, near Wright, Campbell Co., WY, USA esseneite, gehlenite, plagioclase sanidinite facies paralava (sedimentary rock partially fused by an adjacent burning coal seam)
FKM-383 Durham Ranch, near Wright, Campbell Co., WY, USA srebrodolskite, gehlenite sanidinite facies paralava (sedimentary rock partially fused by an adjacent burning coal seam)
FKM-384 Durham Ranch, near Wright, Campbell Co., WY, USA alumoåkermanite sanidinite facies paralava (sedimentary rock partially fused by an adjacent burning coal seam)
FKM-385 Seixoso quarry, Lixa, Portugal zinconigerite-2N1S (may be ferronigerite-2N1S) Sn-bearing pegmatite zinc, tin
FKM-386 Bor mine, Dal’negorsk, Russia dalnegorskite, hedenbergite boron skarn manganese
FKM-387 Långban, Sweden mangani-pargasite, hausmannite, phlogopite metamorphosed Pb-Ba-Mn metasomite manganese
FKM-388 Xianghualing mine, Linwu Co., Chenzhou, Hunan, China hsianghualite, fluorite, phlogopite, liberite, chrysoberyl, magnesiotaaffeite, zinconigerite greisen-like skarn in at limestone-granite contact lithium, beryllium, zinc
FKM-389 Commercial quarry, Crestmore, California, USA clintonite, calcite, monticellite, garnet high grade metasomatized marble (“skarn”)
FKM-390 North Thunderbird mine, Mesabi Range, Minnesota, USA minnesotaite, greenalite low grade metamorphosed Fe formation iron
FKM-391 Liebenbergite slag dump, Lavrion slag localities, Attica, Greece schäferite, trevorite, liebenbergite/Ni-bearing forsterite historic metallurgical slag nickel, vanadium
FKM-392 Liebenbergite slag dump, Lavrion slag localities, Attica, Greece liebenbergite/Ni-bearing forsterite, trevorite, schäferite historic metallurgical slag nickel, vanadium
FKM-393 not reported at present iridescent blue orthoamphibole (anthophyllite/gedrite), staurolite, clinochlore, cordierite, quartz, pyrite, pyrrhotite, chalcopyrite orthoamphibolite (akin to “nuummite”)
FKM-394 Yamanobo, Itoigawa City, Niigata Prefecture, Japan kosmochlor, Cr-eckermannite blueschist-facies jadeitic amphibolite chromium
FKM-395 Yamanobo, Itoigawa City, Niigata Prefecture, Japan kosmochlor, C-rich eckermannite blueschist-facies jadeitic amphibolite chromium
FKM-396 Ohmi river, Ōmi, Itoigawa City, Niigata Prefecture, Japan itoigawaite, jadeite jadeitite strontium
FKM-397 Ohmi river, Ōmi, Itoigawa City, Niigata Prefecture, Japan ohmilite, magnesio-riebeckite, albite albitite strontium
FKM-398 Ohmi river, Ōmi, Itoigawa City, Niigata Prefecture, Japan strontio-orthojoaquinite, benitoite, magnesio-riebeckite, sepiolite, albite albitite strontium, barium
FKM-399 Iwagi Island, Ochi District, Ehime Prefecture, Japan sugilite, katayamalite, albite albitite lithium, titanium
FKM-400 N’Chwaning I Mine, Kuruman, Northern Cape, South Africa sugilite hydrothermal Mn metasediment manganese, lithium
FKM-401 Lupikko Mine, Pitkyaranta, Karelia, Russia helvine, fluorite greisen-like skarn beryllium, boron, fluorine
FKM-402 Ristiniem peninsula, Pitkyaranta, Karelia, Russia norbergite, phlogopite, forsterite, clacite, dolomite high grade magnesian marble fluorine
FKM-403 Nueva Vizcaya mine, Burguillos del Cerro, Badajoz, Spain allanite-(La)/allanite-(Ce)/REE-rich epidote, magnetite Fe mine oxide ore and silicate alteration assemblage REE, iron
FKM-404 Långban, Sweden joesmithite metamorphosed Pb-Ba-Mn metasomite lead, beryllium
FKM-405 Coal mine No. 45 (burned dump), Kopeysk, Chelyabinsk Oblast, Russia “chlorohibschite” (“igumnovite”) sanidinite-facies coal-fire pyrometamorphic chlorine
FKM-406 Humpolec, Vysočina Region, Czech Republic malayaite, andradite, pyrite skarn tin
FKM-407 Itmurundy massif (Itmuryndy), Krasnyi Oktyabr’, Aktogay, Kazakhstan jadeite, albite blueschist-facies Na metasomatite
FKM-408 Sayano-Shushenskaya dam, Khakassia, Russia jadeite blueschist-facies Na metasomatite
FKM-409 Dannemora mine, Östhammar, Uppsala County, Sweden clino-ferro-suenoite manganiferous Fe skarn manganese
FKM-410 Titovskoe B deposit, Tas-Khayakhtakh Range, Sakha, Russia fluoborite high grade B-bearing skarn boron
FKM-411 Akhmatovskaya Kop’ (Achmatovsk Mine), Nazyamskie Mountains, Chelyabinsk Oblast, Russia ludwigite high grade skarn boron
K-65 Kaltes Tal, Germany spinel group (spinel), ilmenite, olivine (forsterite), mica (biotite [Ti-rich phlogopite]) mica peridotite titanium