| NATIVE COPPER in ANDESITE, Caledonia Mine, Rockland, Michigan, 12 x 8 x 3.5 cm | |
 | Here is a cabinet sized specimen with a greenish Epidote matrix with Copper running through the specimen and protruding in various of locations. One side is cut and polished showing the details of the Andesite and Copper veining. ex Gil Griffin collection. |
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