Quartz from selected localities.
USA | |
| Minerals of Colorado (1997) Eckel, E. B. |
Gabe Cangelosi Collection | |
Copper Handbook 1911 | |
| www.exceptionalminerals.com |
USA | |
| Minerals of Colorado (1997) Eckel, E. B. |
Gabe Cangelosi Collection | |
Copper Handbook 1911 | |
| www.exceptionalminerals.com |
Black Bear Mine, Telluride Mining District, Colorado, USA