Pyrargyrite from selected localities.
USA | |
| Weed, W.H. (1912) Geology and Ore Deposits of the Butte District, Montana. United States Geological Survey, Professional Paper 74, 262 pages plus plates. |
Van King | |
Weed, W.H. (1912) Geology and Ore Deposits of the Butte District, Montana. United States Geological Survey, Professional Paper 74, 262 pages plus plates. |
Lexington Mine, Walkerville, Butte Mining District, Silver Bow County, Montana, USA