| 510-9lddois ((CALCITE with COPPER inclusions)), $10 MINIMUM BID, Central Mine, Keweenaw Peninsula, Michigan, 8.5 x 3.5 x 3.5 cm, Cabinet, | |
 | Here is a specimen from the Central Mine of Calcite crystals on matrix. The Copper inclusions are not in the main part of the large Calcite crystals but are in the minor Calcite throughout the specimen. |
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