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Chalcocite from
Reins Copper Company Mine, Butte, Butte District (Summit Valley District), Silver Bow Co., Montana, USA

Description
Quality of samples:	not specified / average specimens
Confirmation
Validity:	Believed Valid
References
References:	Geology and Ore Deposits of Butte District, Montana, W. Weed
Data
Mineral Data:	Click here to view Chalcocite data
Locality Data:	Click here to view Reins Copper Company Mine, Butte, Butte District (Summit Valley District), Silver Bow Co., Montana, USA

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