Chalcocite and Chalcopyrite, Covellite and Chalcopyrite, and Erubescite

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Description

CHALCOCITE AND CHALCOPYRITE, COVELLITE AND CHALCOPYRITE, AND ERUBESCITE Butte Mining District, Montana, USA Chalcocite and Chalcopyrite: sharp, charcoal-grey to bronzy-brown chalcocite crystals, to 15mm, are festooned atop the sculptural matrix of solid granular chalcocite ore matrix. Chalcopyrite crystals embedded in chalcocite, measuring 10 x 8 x 5 cm ; Covellite...

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Related Keywords

chalcopyrite covellite chalcocite measuring crystals erubescite massive golden sharp matrix embedded blue montana bronzy-brown granular iridescent grey specimen luster butte 15mm hues sculptural solid mining district charcoal-grey festooned atop good