Monazite-(Ce) from Gunnison County, Colorado, USA
USA | |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
Bob Cobban | |
Ralph Parkes collection | |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
Brown Derby No. 1, Brown Derby Mine, Quartz Creek Pegmatite Mining District, Gunnison County, Colorado, USA