2
Copper
Copper, 8.9 cm, from the Centennial No. 6 mine, Calumet & Hecla Conglomerate Lode, Calumet, Houghton County, Michigan. The specimen is an example of a rare triple “copper skull”—a copper form that is unique to this area of Michigan. Ex F. John Barlow collection (No. 1368). Illustrated in The F. John Barlow Mineral Collection (1996), page 277. Jeff Scovil photo.
Product details
Species
SizeSmall Cabinet
Dimensions8.9 cm
Locality
Publications
- Mineralogical Record Mineral Collections In American Northeast page 278
Added on02/13/2026
Comments
Known provenance
Species and Locality Wiki Pages
Collectors of Copper from Calumet & Hecla Mine
Copper from USA Sales Data
From
To
From
To
Loading sales data...
All Sales
Loading specimens...