Copper 'Skull'
at-auction$ 20
- Locality
- Centennial #3 Mine, Calumet, Keweenaw County, Michigan
- Minerals
- Copper
- Dimensions
- 8.0 x 6.4 x 2.6 cm
- Size class
- Small Cabinet
- SID
- SM323
Shown is a classic partial 'Copper Skull' formation from Keweenaw County in Michigan. These were formed when platy copper
was deposited on round cobbled stone to give it the look of a partial skull. Ex. Bob Trimingham Collection with detailed label description.