| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Michigan > Copper on Prehnite |
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| DESCRIPTION: | No. 80332 |
| Mineral: | Copper on Prehnite |
| Locality: | Iroquois Mine, 3.5 km northeast of Ahmeek, Keweenaw County, Michigan |
| Description: | Classic specimen of distinct individual native copper crystals (naturally occurring copper crystals) to 2 mm on lustrous translucent green prehnite crystals to 4 mm lining three cavities in gray matrix. The native copper crystals have a natural patina. Ex. C. Oldham Collection #M-20; originally acquired in 1983 |
| Overall Size: | 8x6x5 cm |
| Crystals: | 1-4 mm |
| Archived: | For reference only |
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