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Mushistonite: (Cu,Zn,Fe)Sn++++(OH)6 Kesterite: Cu2(Zn,Fe)SnS4
Comments: Sharp, kesterite crystal, greenish in color due to a mushistonite coating with clear, prismatic beryl crystals. Location: Xue Bao Diang Mountains, north of Pingwu, Sichuan Province, China. Scale: Crystal size 1 cm. © Dan Weinrich
Mushistonite: (Cu,Zn,Fe)Sn++++(OH)6
Comments: Green crystalline mushistonite coatings on quartz. Location: Etta Mine, Keystone, Pennington County, South Dakota, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species