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USA | |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 283 Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 92. 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.: 283 Galbraith, F.W. & Brennan (1959), Minerals of AZ: 92. Gilluly, J. (1937), Geology and ore deposits of the Ajo quadrangle, AZ, AZ Bur. of Mines Bull. 141 |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 283 Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 92. |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 283 |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 283 |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 283 Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 92. |