| References: | Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 196; Kerr, P.F. (1951), Alteration features at Silverbell, AZ, Geol. Soc. Amer. Bull.: 62: 451-480; Engineering Mining Jour. (1904), The Silverbell Camp, AZ: 77: 639; Galbraith, F.W. (1947), Minerals of AZ, AZ Bur. Mines Bull. 153: 30. |