Nontronite from Pinal County, Arizona, USA
USA | |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 315. |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 315 Jones, R.W. & W.E. Wilson (1983), The Ray mine, Min.Rec.: 14(5): 311-322. Schwartz, G.M. (1952), Chlorite-calcite pseudomorphs after orthoclase phenocrysts, Ray, Arizona, Econ.Geol.: 47: 665-672 |