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Comments: black massive and botryoidal clausthalite on matrix.
Location: Lasovice, Mittelbuhmen, Stredocesky, Czech Republic.
Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species
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