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USA | |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 400 Gilluly, J. (1937), Geology and ore deposits of the Ajo quadrangle, AZ, AZ Bur. Mines Bull. 141: 83. |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 400. |
- Old Baldy Mining District
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 370, 400 Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 102. Schrader, F.C. (1917), The geologic distribution and genesis of the metals in the Santa Rita-Patagonia Mountains, AZ, Econ.Geol.: 12: 237-269 |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 400. |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 400 Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 102. |
- Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District)
| Galbraith, F. W. (1947) Minerals of Arizona (Second Edition, Revised) University of Arizona Bulletin 153. Arizona Bureau of Mines |