Nontronite from selected localities.
USA | |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 314; Schwartz, G.M. (1947), Hydrothermal alteration in the 'porphyry copper' deposits, Econ.Geol.: 42: 319-352; Schwartz, G.M. (1958), Alteration of biotite under mesothermal conditions, Econ.Geol.: 53: 164-177; Galbaith, F.W. & D.J. Brennan (1959), Minerals of AZ: 110. |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 314; Moolick, R.T. & J.J. Durek (1966), The Morenci district, in S.R. Titley and C.L. Hicks (editors), Geology of the porphyry copper deposits, southwestern North America, Univ. AZ Press, Tucson: 221-231. |