591 entries of Mineral Photo Archive of Native Copper Specimen
|
|
|
Copper in conglomerate
from Calumet and Hecla Mine, Houghton County, Keweenaw Peninsula Copper District, Michigan
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Copper in shale
from White Pine Mine, Keweenaw Peninsula Copper District, Ontonagon County, Michigan
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Copper on Prehnite
from Iroquois Mine, 3.5 km northeast of Ahmeek, Keweenaw County, Michigan
|
|
|
|
Copper on Prehnite
from Osceola Mine, Keweenaw Peninsula Copper District, Houghton County, Michigan
|
|
|
Copper on Prehnite
from Iroquois Mine, 3.5 km northeast of Ahmeek, Keweenaw County, Michigan
|
|
|
Copper on Prehnite
from Osceola Mine, Keweenaw Peninsula Copper District, Houghton County, Michigan
|
|
|
Copper on Prehnite
from Iroquois Mine, 3.5 km northeast of Ahmeek, Keweenaw County, Michigan
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Copper var. Skull
from Centennial Mine, Calumet, Houghton County, Keweenaw Peninsula Copper District, Michigan
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Copper with Silver
from South Kearsarge Mine, Houghton County, Keweenaw Peninsula Copper District, Michigan
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|