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Russian Treasure from the Earth!! Rare Star Muscovite Mica Sphere Ball from Kola Peninsula, Russia - 3.5" - 254.5 Grams

Rare polished silvery-green with silky lustre Star Muscovite Mica Sphere Ball in quartz -microcline pegmatite rock from Kola Peninsula, Russia.

Muscovite crystals in quartz -microcline pegmatite rock
Location: Pestsovye Keivy, Keivy Mountains, Lovozersky District, Murmansk Oblast, Kola Peninsula, Russia
Size: 5.7 Centimeters diameter (3.5")
Weight: 254.5 Grams

Interesting Fact: Eastern part of Keivy chain is composed by aluminous mica-shists that underwent granulite-facies metamorphism. The region is famous its staurolite twins and industrial grade deposits of kyanite.
https://www.mindat.org/loc-2669.html

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