‡Ref.: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 131, 155, 189, 407; Frondel, C.C. (1956), Mineral composition of gummite, Am.Min.: 41: 539-568; Frondel, C.C. (1958), Systematic Mineralogy of Uranium & Thorium, USGS Bull. 1064: 68; 300; Finnell, T.L. (1957), Structural control of uranium ore at the Monument No. 2 mine, Apache Co., AZ, Econ.Geol.: 52: 25-35; Witkind, I.J. & Thaden (1963), Geology and uranium-vanadium deposits of the Monument Valley area, Apache and Navajo Cos., AZ, USGS Bull. 1103: 97 (Table 2), 104-105; Isachsen, Y.W., et al (1955), Age and sedimentary environments of uranium host rocks, Colorado Plateau, Econ.Geol.: 50: 127-134; Mitcham, T.W. & C.G. Evensen (1955), Uranium ore guides, Monument Valley district, AZ, Econ.Geol.: 50: 170-176; Wright, R.J. (1955), Ore controls in sandstone uranium deposits of the Colorado Plateau, Econ.Geol.: 50: 135-155; Evensen, C.G. & I.B. Gray (1958), Evaluation of uranium ore guides, Monument Valley, AZ and UT, Econ.Geol.: 53: 639-662; Young, R.G. (1964), Distribution of uranium deposits in the White Canyon-Monument Valley district UT-AZ, Econ.Geol.: 59: 850-973; Weeks, A.D. et al (1955), Navajoite, a new vanadium oxide from AZ, Am.Min.: 40: 207-212; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 35, 111; 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; Bain, G.W. (1952), Uranium deposits in southwestern CO; Chester & Donnerstag, US Dept. of Energy- RMO 830.
A uranium mine owned by the Climax Uranium Co.
Mineralization is uraninite and tyuyamunite with associated species in irregular masses, tabular lenses, rods (cylindrical log-like structures) in the De Chelly sandstone and the Pioneer formation.
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Map Reference: 36°55'N , 109°53'W
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Mineral List:17 entries listed. 14 valid minerals.
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