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USA | |
| Graeme, Richard W. (1981) Famous Mineral Localities: Bisbee, Arizona. The Mineralogical Record, 12 (5) 258-319 |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 404 Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 74. |
| Galbraith, F.W., Brennan, D.J. (1959) Minerals of Arizona. Tucson, University of Arizona Press: 116 p. (74). |
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Lavender Pit, Bisbee, Cochise County, Arizona, USA