| References: | Dana 6: 1094; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 543; Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 147; Galbraith, F.W. & Brennan (1959), Minerals of AZ: 63. |