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Clausthalite: PbSe Schlemaite: (Cu,[ ])6(Pb,Bi)Se4 Eucairite: CuAgSe
Comments: Reflected-light digital-image of the intermixed schlemaite grain in type sample F2, from which the reflectance, crystallographic and crystal-structure data were obtained. (CanMin, v 41, p 1435). Location: "Tiber" dike, -855-m level, block 5128, main shaft # 371, Niederschlema-Alberoda vein-type uranium depost at Hartensein, Erzgebirge, Germany. Scale: See Picture. © Canadian Mineralogist
Clausthalite: PbSe
Comments: black massive and botryoidal clausthalite on matrix. Location: Lasovice, Mittelbuhmen, Stredocesky, Czech Republic. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species