Harmotome from Great Plains Domain, North America Plate
USA | |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
| Newsletter of the Albuquerque Gem & Mineral Club, Volume 49 Number 8 |
Patrick Haynes |
Chili, Rio Arriba County, New Mexico, USA