| 11hlkmis ((COPPER , CALCITE, QUARTZ)), $10 MINIMUM BID, Greenstone Quarry, Blue Ridge Summit, Adams County, Pennsylvania, 8 x 7 x 5 cm, Cabinet, | |
 | Here is a Pennsylvania Copper, uncommon east of the Mississippi. Matrix is greenstone, a serpentine, but also has both Quartz and Calcite. |
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