Right on time for the release of the new Mineralogical Record “Copper Country III” issue on the mines of Ontonagon County comes with superb group of very well-formed branching tetrahexahedral copper crystals on basalt matrix from the Caledonia mine near Mass City, Ontonagon County, Michigan, USA. Comes with a custom display base as well. Great piece! Mark Cross photo.
$3,500.00
In stock
Species: Baryte, Native Copper
Locality: South Kearsarge Mine, Kearsarge, Calumet Township, Houghton County, Michigan, USA
Size: 10 x 3.4 x 1 cm
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Species: Cuprite, Native Copper
Locality: Rubtsovsk Mine, Rubtsovsky District, Altai Krai, Russia
Size: 22 x 11 x 7 cm
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Species: Cuprite, Native Copper, Tenorite
Locality: Phoenix Mine, Phoenix, Houghton Township, Keweenaw County, Michigan, USA
Size: 11 x 4.5 x 1.7 cm
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Species: Native Copper
Locality: Quincy Mine, Quincy Township, Houghton County, Michigan, USA
Size: 25 x 17 x 5.5 cm
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