| References: | Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 122; Ransome, F.L. (1904), The geology and ore deposits of the Bisbee quadrangle, AZ, USGS PP 21: 110; Guild, F.N. (1910), The Mineralogy of Arizona, The Chemical Publishing Co., Easton, PA; Kunz, G.F. (1885), On remarkable copper minerals from AZ, Annals N.Y. Acad. Sci.: 3: 275-278; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 53. |