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Cassiterite: SnO2
Comments: Very brilliant black crystals of cassiterite on white mica. Location: Xue Bao Diang, Sichuan, China. Scale: Size Not Given. © Fabre Minerals
Comments: Gemmy, doubly terminated cassiterite on quartz-mica matrix. Location: Langcangjiang river area, Yunnan, China. Scale: 2.7 x 2.2 x 1.8 cm. © Fabre Minerals