| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Michigan > Copper |
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| DESCRIPTION: | No. 30524 |
| Mineral: | Copper |
| Locality: | Keweenaw Peninsula Copper District, Michigan |
| Description: | Heavy mass of native (naturally occurring) copper with some voids filled with greenish basalt. The copper has crudely crystalline surface and it appears the copper was coated to prevent corrosion. Ex. Dr. Eugene E. Sensel (1911-2000) collection #B799; ex. W. Krause in 1965 |
| Overall Size: | 13x8x3 cm |
| Crystals: | 1-4 mm |
| Archived: | For reference only |
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