| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Michigan > Copper |
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| DESCRIPTION: | No. 46773 |
| Mineral: | Copper |
| Locality: | Keweenaw Peninsula Copper District, Houghton County, Michigan |
| Description: | Crystallized metallic native copper that formed in a fracture-filling vein in brown basalt with sharp, well defined copper crystals lining the inner surfaces on one end. |
| Overall Size: | 7x6x1 cm |
| Crystals: | 1-3 mm |
| Archived: | For reference only |
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