Graphite from Beaverhead County, Montana, USA
USA | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Ref: Montana Bureau of Mines and Gology Special Publication 75, 1977 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
(2005) Mineral Resources Data System (MRDS), US Geological Survey. |
Crystal Graphite Mine, Ruby Mountains Region, Dillon Mining District, Beaverhead County, Montana, USA