Heulandite Subgroup from
USA | |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 173, 250. |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 174, 250 Jones, R.W. & W.E. Wilson (1983), The Ray mine, Min.Rec.: 14(5): 311-322. Throop, A.H. & P.R. Buseck (1971), Nature and origin of black chrysocolla at the Inspiration mine, AZ, Econ.Geol.: 66: 1168-1175 |
Ray Mine, Scott Mountain, Pinal County, Arizona, USA