| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Michigan > Copper |
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| DESCRIPTION: | No. 37722 |
| Mineral: | Copper |
| Locality: | Keweenaw Peninsula Copper District, Michigan |
| Description: | Flattened nugget of native copper that was polished on one face to show the metallic interior. All of the rear, and areas on the front, have a natural green patina of copper oxide. |
| Overall Size: | 11x7x1 cm |
| Crystals: | |
| Archived: | For reference only |
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