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USA | |
| Anthony, John W., Williams, Sidney A., Bideaux, Richard A., Grant, Raymond W. (1995) Mineralogy of Arizona (3rd ed.) University of Arizona Press, Tucson, AZ. |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 358 Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 30. |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 358 Schwartz, George Melvin (1947) Hydrothermal alteration in the "porphyry copper" deposits. Economic Geology, 42 (4) 319-352 doi:10.2113/gsecongeo.42.4.319 |
- Middle Pass Mining District
| Gilluly, J. (1937), AZ Bur. of Mines Bull. 141: 106-107. |
- Tombstone Mining District
| Georges Favreau collection |