Copper - Keweenaw County, USA - 240 mm x 140 mm x 100 mm

Mineral: Copper
Locality: Lake Superior copper district, Keweenaw County, Michigan, USA
Dimensions: 240 mm x 140 mm x 100 mm

Description: Picture 2 of 2. Obtained 2013. I've referenced this as Lake Superior Copper District, Michigan because the district includes both Houghton and Keweenaw Counties, Michigan. The location choice should probably be clarified in locality.