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SPERRYLITE

Click on the image to see a larger version copyright statement	Description: A euhedral silvery crystal of sperrylite, 4[PtAs2], on a golden matrix of chalcopyrite, 4[CuFeS2].
	Locality: Talnakh, Noril'sk, Siberia, Russia
	Photo donor: Image is by courtesy of Stuart Wilensky www.wilenskyminerals.com