samples FKM-401 to FKM-425

 

Check out the thin section scans introduction page for more information on the variety of samples featured here, how the scans were taken & processed for web display, and what additional optical and analytical data I hope to include in the figure captions as I continue to update the site and add to the collection of thin sections.

There’s also a fully searchable index covering the complete thin section set, listing for each sample its locality, the anticipated major minerals, a brief generalized geologic environment description, and where appropriate, the nature of any unusual element enrichments.

Note: Depending on the speed of your internet connection, it could take a minute or two for the images to load. If after the page looks like it’s finished loading but some of the thin section images appear to be missing, reloading the page will typically fix the problem.

 



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sample: FKM-401 (dealer sample number 8806)
locality: Lupikko Mine, Pitkyaranta, Pitkyarantsky District, Republic of Karelia, Russia.
rock type: test.
major mineralogy: The specimen was acquired for helvine.

 




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sample: FKM-402 (dealer sample number 7309)
locality: The dealer label lists the locality as “Pitkyaranta, northeastern Ladoga region, SW Karelia, Russia”. The sample is likely more specifically from the Ristiniem peninsula (approximately 3 km south of Pitkyaranta), a collecting area where high-grade banded “calciphyres” were locally mined.
rock type: high-grade magnesian marble.
major mineralogy: The specimen was acquired for norbergite.

 




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sample: FKM-403 (dealer sample number 7897)
locality: Nueva Vizcaya Mine, Burguillos del Cerro, Badajoz, Extremadura, Spain.
rock type: metasomatic Fe-oxide.
major mineralogy: The specimen was acquired for allanite-(La), although apparently allanite-(La) only makes up thin bands within zoned composite crystals of allanite-(Ce)/allanite-(La)/REE-rich epidote. Additionally, the specimen may contain diopside, K-Cl-rich calcic amphibole, magnetite and Co-bearing löllingite.

 




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sample: FKM-404 (dealer sample number 8783)
locality: Långban, Filipstad, Värmland, Sweden.
rock type: test.
major mineralogy: specimen acquired for joesmithite.

 




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sample: FKM-405 (dealer sample number 7922)
locality: burned mine dump at Coal mine No. 45, Kopeysk, Chelyabinsk Oblast, Russia.
rock type: sanidinite-facies pyrometamorphic rock formed as a result of spontaneous coal fires.
major mineralogy: specimen acquired for “chlorohibschite” (alternatively known as “igumnovite”).

 




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sample: FKM-406 (dealer sample number 7539)
locality: Humpolec, Pelhřimov District, Vysočina Region, Czech Republic.
rock type: test.
major mineralogy: specimen acquired for malayaite.

 




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sample: FKM-407 (dealer sample number 8734)
locality: Itmurundy massif (Itmuryndy), Krasnyi Oktyabr’, Aktogay, Karaganda Region, Kazakhstan.
rock type: high pressure Na-metasomatite.
major mineralogy: specimen acquired for jadeite and albite.

 




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sample: FKM-408 (dealer sample number 8729)
locality: Sayano-Shushenskaya dam, Khakassia, Russia.
rock type: test.
major mineralogy: specimen acquired for jadeite.

 




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sample: FKM-409 (dealer sample number 8834)
locality: from the type locality, Dannemora mine, Dannemora, Östhammar, Uppsala County, Sweden.
rock type: test.
major mineralogy: specimen acquired for clino-ferro-suenoite (formerly known as “dannemorite” or “manganogrunerite”).

 




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sample: FKM-410 (dealer sample number 6630)
locality: Titovskoe B deposit, Tas-Khayakhtakh Range, Polar Yakutia, Sakha, Russia.
rock type: test.
major mineralogy: specimen acquired for fluoborite.

 




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sample: FKM-411 (dealer sample number 8221)
locality: Akhmatovskaya Kop’ (Achmatovsk Mine), Nazyamskie Mountains, Zlatoust, Chelyabinsk Oblast, Russia.
rock type: test.
major mineralogy: specimen acquired for ludwigite.

 




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sample: FKM-412
locality: test.
rock type: test.
major mineralogy: test.

 




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sample: FKM-413
locality: test.
rock type: test.
major mineralogy: test.

 




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sample: FKM-414
locality: test.
rock type: test.
major mineralogy: test.

 




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sample: FKM-415
locality: test.
rock type: test.
major mineralogy: test.

 




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sample: FKM-416
locality: test.
rock type: test.
major mineralogy: test.

 




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sample: FKM-417
locality: test.
rock type: test.
major mineralogy: test.

 




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sample: FKM-418
locality: test.
rock type: test.
major mineralogy: test.

 




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sample: FKM-419
locality: test.
rock type: test.
major mineralogy: test.

 




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sample: FKM-420
locality: test.
rock type: test.
major mineralogy: test.

 




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sample: FKM-421
locality: test.
rock type: test.
major mineralogy: test.

 




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sample: FKM-422
locality: test.
rock type: test.
major mineralogy: test.

 




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sample: FKM-423
locality: test.
rock type: test.
major mineralogy: test.

 




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sample: FKM-424
locality: test.
rock type: test.
major mineralogy: test.

 




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sample: FKM-425
locality: test.
rock type: test.
major mineralogy: test.

 



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