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dipyramidal

Kobellite

Kobellite (Pb22Cu4(Bi,Sb)30S69) is a gray, fibrous, metallic mineral, a sulfide of antimony, bismuth, and lead. It is a member of the izoklakeite - berryite series with silver and iron substituting in the copper site and a vaying ratio of bismuth, antimony, and lead. It crystallizes with orthorhombic dipyramidal crystals. Locations include Hvena, Sweden; Ouray, Colorado; and Wake County, North Carolina, USA. Named after Wolfgang Franz von Kobell (1803-1882), German mineralogist.

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