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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.: 213, 219, 390 Schwartz, G.M. & C.F. Park, Jr. (1932), A microscopic study of ores from Campbell mine, Bisbee, AZ, Econ.Geol.: 27: 39-51 |
- Tombstone Mining District
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 219, 392 Galbraith, F.W. (1947), Minerals of AZ, AZ Bur. Mines Bull 153: 28 Butler, B.S., et al. (1938b), Geology and ore deposits of the Tombstone district, AZ, AZ Bur. Mines Bull. 143 |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 219 Galbraith, F. W. (1947) Minerals of Arizona (Second Edition, Revised) University of Arizona Bulletin 153. Arizona Bureau of Mines Butler, B.S., et al. (1938b), Geology and ore deposits of the Tombstone district, AZ, AZ Bur. Mines Bull. 143 |