| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Michigan > Copper |
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| DESCRIPTION: | No. 30876 |
| Mineral: | Copper |
| Locality: | Osceola Mine, Keweenaw Peninsula Copper District, Houghton County, Michigan |
| Description: | Heavy specimen with native copper in quartz-rich matrix. One face was polished to highlight the copper inclusions. High copper content - approximately 50%. Ex. J. Cilen (1916-1997) #17700; ex. N. Fasciola |
| Overall Size: | 10x8x5 cm |
| Crystals: | |
| Archived: | For reference only |
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