CUIO-41
Copper
Central Mine, Keweenaw County, Michigan, USA
Miniature, 4.6 x 2.3 x 1.8 cm
Ex. Ernest Schlichter
$250.00
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A rich blue green patina of bornite has covered the copper crystals, to 2.2 cm in length, in this cluster. On the back side is a shallow vug replete with a druse of gemmy green epidote. Unusual patina!