Pertsevite-(OH), Pertsevite-(F), Kotoite, Ludwigite

Locality: Snezhnoe B Deposit, Izvestkovyi Stream, Tas-Khayakhtakh Range, Dogdo River Basin, Polar Yakutia, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia

23x19x3 mm fragment of Ludwigite-Kotoite skarn with total contents of Pertsevite-(F) and Pertsevite-(OH) (IMA2008-060) about 5 wol. %. Pertsevite group minerals are invisible by eye and form 20-50 mkm thick rims around Humite group minerals grains on contact with Kotoite. Collected by Nikolai N. Pertsev in early 60th, author's field number of the specimen is B-814. Pavel M. Kartashov collection and photo.

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Photo added: 11th Dec 2008

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