Tantalite from selected localities.
USA | |
| Minerals of Colorado (1997) E.B. Eckel |
Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 30 (Table A-1). | |
Minerals of Colorado (1997) E.B. Eckel | |
U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; USGS Prof. Paper 227 |