Copper - image 1
Photo by Jeff Scovil

Copper

S

Sean Finneson
0 for sale
Help improve this recordNo owner is registered for this specimen yet. If it's yours or you know more about it, you can add the owner, provenance, publications and other details.
Sign in to contribute
Cubic copper crystal cluster, 2 cm, from the Keweenaw Peninsula, Michigan. Ex New York mineral dealer Hugh A. Ford (1885–1966), ex Richard A. Bideaux (1935–2004), ex Lawrence H. Conklin (1933–2016); Sean Finneson collection; Jeff Scovil photo.

Product details

Species
CopperAbout Copper →
SizeThumbnail
Dimensions2.0 cm
Added on02/13/2026
Locality
USA, Michigan, Keweenaw PeninsulaRegional guide →
Publications
  • Mineralogical Record Refined Elegance page 49

Known provenance

DateCollectorAcquisition price
—Lawrence H. ConklinNot disclosed
—Richard A. BideauxNot disclosed
—Hugh A. FordNot 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…