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Chalcocite after Covellite, Butte complex, Silver Bow County, Butte, Montana Miniature 1.5 x 2.5 x 3.5 cm $350. Online 2/27


  • $ 35000

Platy, hexagonal covellite faithfully replaced by deep gray chalcocite. Complete to all sides and in excellent condition. An excellent pseudomorph from a U.S. classic locality. John e. McDonald to; Kenyon to; Dr. Barratt Phillips to; Les Wagner Collection.