Michigan Native Copper Cleaned Mine Houghton Calumet Keweenaw Mining
Item History & Price
| Reference Number: Avaluer:4826094 |
2.2 oz about 3 x 1 1/2"
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17 Pc Michigan Keweenaw County Cleaned Native Copper 907. 19 Gm Calumet Houghton
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Michigan Copper Mine Native Copper Polished L Houghton Keweenaw Mohawk Phoenix
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Native Silver & Copper: Centennial Mine, Houghton County, Michigan, Usa - Nr
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