Native Copper: Mass mine C Shaft, Mass City, Ontonagon County, Michigan, USA
$1,500.00
Native Copper: Mass mine C Shaft, Mass City, Ontonagon County, Michigan, USA
$1,500.00
1 in stock
Description
Species: Native Copper
Locality: Mass mine C Shaft, Mass City, Ontonagon County, Michigan, USA
Size: 7 x 4 x 3 cm.
Beautiful group of sharp, blocky dodecahedral and textrahexahedral copper crystals from an unusual locality in the Michigan Copper Country. Has a pleasing brown patina and an aesthetic branching form. A very nice copper for this mine. Mark Cross photo.
