| jda,r COPPER, Houghton, Michigan, 8 x 5 x 3.5 cm, | |
 | Interesting Native Copper specimen from Michingan. More of the Calcite could be removed to expose more of the Copper crystals. |
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| jda,r COPPER, Houghton, Michigan, 8 x 5 x 3.5 cm, | |
| Interesting Native Copper specimen from Michingan. More of the Calcite could be removed to expose more of the Copper crystals. |
|