| 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: 490; Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 161; Guild, F.N. (1910), The mineralogy of Arizona; Univ. of AZ Bull. 41 (1916-17), Mineralogy of Useful Minerals in AZ: 27; Galbraith, F.W. & Brennan (1959), Minerals of AZ: 60. |