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USA | |
| Graeme, R. (1993) Bisbee revisited. The Mineralogical Record: 24: 421-436. |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 138 Graeme, R. (1993), Bisbee revisited, Min.Rec.: 24: 421-436. |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 139. |
- Ellsworth Mining District
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 139. |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 138 Galbraith, F.W. & Brennan (1959), Minerals of Arizona: 33. |
| Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 21 (Table A-1). |
- Diamond Joe Mining District
| Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 20 (Table A-1). |
- Bradshaw Mountains (Bradshaw Range)
- Castle Creek Mining District
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 138, 139 Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 33, 44. Galbraith, F. W. (1947) Minerals of Arizona (Second Edition, Revised) University of Arizona Bulletin 153. Arizona Bureau of Mines Lindgren, W. (1926), USGS Bull. 782: 28, 184-185 |
| Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 33. |