| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Michigan > Copper |
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| DESCRIPTION: | No. 52981 |
| Mineral: | Copper |
| Locality: | Keweenaw Peninsula Copper District, Michigan |
| Description: | Metallic native copper with remnants of greenish matrix in areas. The native copper has open areas where the copper formed around matrix that is no longer present. Ex. Tim Swan collection at River Valley Mineral Museum (Rumford, Maine) #539 |
| Overall Size: | 11x7x4 cm |
| Crystals: | |
| Archived: | For reference only |
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