| References: | 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: 631; Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 147, 212; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 67. |