Copper in Basalt

Copper in Basalt

Copper in Basalt. From the Baltic Mine in Houghton county, Michigan. Specimen weighs about 10.3 Oz. The Baltic mine consisted of 5 under ground shafts which were mined from 1897 to 1931. The mine produced 276 million lbs of refined copper in the 34 years. Calcite is found on specimen.

US $35

In Stock: 1

Handling charge: US $2

Weight: 0.8 lbs

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