Copper - image 1
Photo by Debra L. Wilson

Copper

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Copper crystal, 2.5 cm (dodecahedron modified by a hexoctahedron), from the Ahmeek #2 mine, Ahmeek, Keweenaw County, Michigan (CM27022). Acquired from Gilbert Gauthier in 1993; Debra L. Wilson photo.

Product details

SpeciesCopper
SizeThumbnail
Dimensions2.5 cm
Added on02/13/2026
LocalityUSA, Michigan, Keweenaw County
Publications
  • Mineralogical Record Mineral Collections In American Northeast page 68
Current owner
Carnegie Museum of Natural History

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Copper
Mineral guide
Learn about Copper
native copper with spinel-twinned crystals and arborescences; notable from Lake Superior, Itauz, Dongchuan, Corocoro, prized for color and localities.
Copper
Regional guide
Copper from Keweenaw County
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Locality guide
Keweenaw County
Keweenaw County, USA - native copper and silver from the Lake Superior district, with sculptural copper crystals and mineral associations for collectors.