Massive Chalcocite

Massive Chalcocite from Butte Mining District, Summit Valley, Silver Bow County, Montana.

Collection

John Betts - Fine Minerals

Description

Heavy mass of copper ore composed of dark gray, massive Chalcocite. Ex. Upsala College.

Locality

Butte Mining District, Summit Valley, Silver Bow County, Montana.

Dimensions

7 x 5 x 2 cm.


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