Chalcocite, Bornite
Thumbnail, 2.7 x 2.0 x 0.6 cm
Dzhezkazgan, Zhezqazghan Oblysy (Dzezkazgan Oblast'; Dzhezkazgan Oblast'; Djezkazgan Oblast'; Jezkazgan Oblast'), Kazakhstan
A STUNNING, hoppered crystal of chalcocite, very rare in this quality from Russia or ANYWHERE for that matter, with purple iridescence. Just an incredibly well-articulated crystal of a mineral that is really rare in such fine definition. In person, its multihued coating of bornite really sparkles with more color than you see here. 2.7 x 2 x 0.6 cm