Hematite from selected localities.
USA | |
| Mineral Associations at Butte, Montana, D.C. Bard & M.H. Gidel, 1914. |
Anaconda Mining Company Collection | |
USGS Bull 574 |
USA | |
| Mineral Associations at Butte, Montana, D.C. Bard & M.H. Gidel, 1914. |
Anaconda Mining Company Collection | |
USGS Bull 574 |