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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.: 381. |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 166. |