Copper - image 1
Photo by Christi Cramer

Copper

Copper, 2.7 cm, from the Mass mine, Ontonagon County, Michigan. Christi Cramer photo.

Product details

SpeciesCopper
SizeMiniature
Dimensions2.7 cm
Added on02/13/2026
LocalityUSA, Michigan, Ontonagon County
Publications
  • Mineralogical Record Mineral Collections In Arizona page 58
Current owner
T
tom.gressman@minrec.org
Member since 2025

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 Ontonagon County
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Locality guide
Ontonagon County
Ontonagon County, USA - famed for native copper and silver, diverse mineral styles from Keweenawan lodes to White Pine, and a Lake Superior palette.