Acanthite from Sneffels Mining District, Ouray County, Colorado, USA
USA | |
| Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182 |
| Rocks & Min. (2009):84:414-425. |
USA | |
| Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182 |
| Rocks & Min. (2009):84:414-425. |