Calcite from selected localities.
USA | |
| Reinhardt, E.V. (1951), Reconnaissance trip to Monument Valley, USAEL, RMO o. 624; Ridge, J.D. (1968), Ore deposits of the United States 1933-1967, Vol. 1: 799-803. |
Frondel, C. (1958), Systematic mineralogy of uranium and thorium, USGS Bull. 1064: 119, 120. | |
| Witkind, I.J. & R.E. Thaden (1963), Geology of uranium-vanadium deposits of the Monument Valley area Apache & Navajo Cos., AZ, USGS Bull. 1103: 138-139. |