Copper - image 1
Photo by Tom Spann

Copper

Unknown Owner
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Copper, 8.7 cm, from an unknown mine in the Keweenaw Peninsula, Michigan. Private collection; Tom Spann photo. Reference: Mineralogical Record “Michigan Copper Country” issue, Wilson and Dyl (1992).

Product details

Species
CopperAbout Copper →
SizeSmall Cabinet
Dimensions8.7 cm
Added on02/13/2026
Locality
USA, Michigan, Keweenaw PeninsulaRegional guide →
Publications
  • Mineralogical Record Flawless Beauty page 198

Known provenance

DateCollectorAcquisition price
—Will JohnsonNot disclosed

Learn more

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 Peninsula, Michigan, USA
Keweenaw Peninsula copper - classic native copper from Michigan, famed for wiry arborescent sprays, sharp crystal faces, and historic mines prized by collector…