Tantalite-(Fe) 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. | |
| Ex. Forrest Cureton, in the collection of Alex Earl |
Crystal Mountain, Crystal Mountain Pegmatite Mining District, Larimer County, Colorado, USA