Psilomelane from selected localities.
USA | |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 337; Wilson, E.D. (1951), Arizona zinc and lead deposits, part II, AZ Bur. of Mines Bull. 158: 80; Kiersch, G.A. (1949), Structural control and mineralization at the Seventy-nine mine, Gila Co., AZ, Econ.Geol.: 44: 24-39. |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 339; Dean, K.C., et al (1952), Concentration of oxide manganese ores from vicinity of Winkleman, Pinal Co., AZ, US Bur. Mines Rept. Inv. 4848. |