| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 431 Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 97. Schrader, F.C. (1917), The geologic distribution and genesis of the metals in the Santa Rita-Patagonia Mountains, AZ, Econ.Geol.: 12: 237-269 Schrader, F.C. (1913), Alunite in Patagonia, AZ, and Bovard, NV, Econ.Geol.: 8: 752-767 |