Bismutite from Montana, USA
USA | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Geology and Ore Deposits of the Elkhorn Mining District, Jefferson County, Montana Walter H. Weed, 1900-1901 |
USA | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Geology and Ore Deposits of the Elkhorn Mining District, Jefferson County, Montana Walter H. Weed, 1900-1901 |