| 15dm1093 ((COPPER included CALCITE)), Phila Academy of Science, $25 MINIMUM BID, Quincy Mine, Keweenaw Peninsula, Michigan, 3.5 x 2 x 1.5 cm, Miniature | |
 | Here is an Philadelphia Academy of Science # 5404A. Here is a 3.5 cm double terminated Calcite crystal with Copper inclusions and Copper protruding from the crystal. ex Dennis McMurdie collection. ex Philadelphia Academy of Science #5404A no label. |
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