Uraninite from selected localities.
USA | |
| Minerals of Colorado (1997) E.B. Eckel |
| [var: Pitchblende] U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Econ Geol (1980) 75:963-991; Econ Geol (1985) 80:410-417 |