Quincy Mine, Houghton Co., Michigan
80mm x 60mm x 45mm
Hackly Copper protruding out of a Quartz matrix with areas overgrown by clear Calcite crystals. Well balanced specimen with lots of Copper and good coverage of Calcite crystals heavily included by bright, non-tarnished Copper. There is some damage to the Calcite, but it is in overall good condition.
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4,914,463 minIDs have been issued as of 15th Sep 2019 11:26 pm BST