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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. |
| Tony Nikischer specimen |
| Weeks, A. D., Lindberg, M. L., Truesdell, A. H., Meyrowitz, R. (1964) Grantsite, a new hydrated sodium calcium vanadate from New Mexico, Colorado, and Utah. American Mineralogist, 49 (11-12) 1511-1526 |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. Am Min 40 (1955), 861 |
| Minerals of Colorado 2nd ed. |
| King, Van (n.d.) Personal communcation. |
| USGS Prof Paper 320 |
| USGS Prof Paper 320 |
Paradox Valley, Uravan Mining District, Montrose County, Colorado, USA