Wad from Black Hills, Pinal County, Arizona, USA
USA | |
| Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 31 |
| Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 31 |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 417 |
USA | |
| Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 31 |
| Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 31 |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 417 |