SKU: P_26-7_113
Native copper from Quincy Mine in Michigan exhibits a branched dendritic form with a curved crystal growing from the side. The surface of the crystals is characterized by a copper-brown color with a subdued luster and a darker, natural patina deposited in the recesses of the fine crystalline structures. Main features: fine, branching crystals; copper color; natural copper-brown patina. Condition: Very good.
Price: 34 EUR (149 PLN)
Availability: In stock
Location: Quincy Mine, Quincy Township, Houghton County, Michigan, USA
Size: 31 x 11 x 20 mm
Weight: 200 g
Chemical formula: Cu
Mohs hardness: 2.5-3