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Copper

D

Dave Bunk Minerals
0 for sale·Member since 2026
This is a large and impressive display of copper that formed as a cast around a large cobble or group of smaller cobbles in the conglomerate-hosted copper deposits of upper Michigan. The shape of the cobble has been roughly preserved in the overall ovoid shape of the specimen. The remnants of fractures and open spaces can be seen in the fins and ridges of copper that mark the casts of these fractures. A remarkable specimen, complete with a custom Sunnywood base.

Product details

Species
CopperAbout Copper →
SizeLarge Cabinet
Dimensions30.0 x 30.0 x 9.0 cm
Added on05/14/2026
Locality
USA, Michigan, Keweenaw PeninsulaRegional guide →

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…