Very impressive large fan-like aggregate of well-formed blocky to twinned copper crystals with a very nice patina from the famous Quincy mine in Hancock, Michigan. A great large Michigan copper with an elegant architecture and great presence in a display case. The backside is almost as good as the front! Comes with a custom milled acrylic display base. Mark Cross photo.
$6,500.00
In stock
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: Cuprite, Native Copper
Locality: Rubtsovsk Mine, Rubtsovsky District, Altai Krai, Russia
Size: 22 x 11 x 7 cm
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Species: Native Copper
Locality: Central Mine, Central, Houghton Township, Keweenaw County, Michigan, USA
Size: 8 x 3.4 x 1.6 cm
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Species: Native Copper
Locality: Osceola Mine, Osceola, Calumet Township, Houghton County, Michigan, USA
Size: 5.8 x 3.9 x 2.1 cm, 40 grams
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