Anglesite from Boulder County, Colorado, USA
USA | |
| Kosnar, Richard A. (1979) What's New in Colorado Minerals?. The Mineralogical Record, 10 (6) 329-332 |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
Inexco Mine, Jamestown Mining District, Boulder County, Colorado, USA