Quartz from selected localities.
USA | |
| U.S. Geological Survey Professional Paper 289 |
| U.S. Geological Survey Professional Paper 289 |
Minerals of Colorado (1997) Eckel, E. B.; U.S. Geological Survey Professional Paper 289 | |
| U.S. Geological Survey Professional Paper 289 |
[var: Smoky Quartz] Minerals of Colorado (1997) Eckel, E. B. |
Mt White, Chaffee County, Colorado, USA