Pyrargyrite from selected localities.
USA | |
| Minerals of Colorado (1997) Eckel, E. B.; U.S. Geological Survey Professional Paper 223 |
| Dan Polhemus collection, cat. #POL-MIN-2020-0448 |
USGS PP 223(Lovering,1950) | |
| Minerals of Colorado (1997) Eckel, E. B. |
Minerals of Colorado (1997) E.B. Eckel |
Diamond Mine, Illinois Mine, Georgetown District, Clear Creek County, Colorado, USA