Chalcocite with Sphalerite, Pyrite, Barite
specimen number:
3671081
location:
Speculator mine, Butte, Silver Bow Co., Montana, USA
description:
Thick metallic masses of chalcocite throughout this pyrite matrix with minor barite and sphalerite. Excellent ore example from this classic mining district.
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Related by Mineral (Chalcocite):
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