Polybasite from Ouray Mining District, Ouray County, Colorado, USA
USA | |
| U.S. Geological Survey Professional Paper 1753 |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
Rocks & Minerals 70:180-187 |