Superb group of sharp Native Copper crystals showing rare cubic form, from the famous Osceola mine in Michigan’s Keweenaw Peninsula. Has a great patina, good luster, and an interesting combination of both elongated spinel-twin crystal forms and well-formed cubic crystals. From the noted collection of Martin Zinn III. Classic!!
$2,500.00
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: Native Copper
Locality: Rocklands Group Copper Project, Cloncurry, Cloncurry Shire, Queensland, Australia
Size: 7.5 x 3.5 x 2 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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Species: Native Copper, Tenorite
Locality: Caledonia Mine, Mass City, Ontonagon County, Michigan, USA
Size: 8 x 4.5 x 5 cm
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