Tungstite from Arizona, USA
USA | |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 423 Dale, V.B. (1959), Tungsten deposits of Yuma, Maricopa, Pinal and Graham Cos., AZ, US Bur. Mines Rept. Inv. 5516 Wilson, E.D. (1941), AZ Bur. Mines Bull. 148: 26-27. |
| Anthony, J.W., et al (1995), Mineralogy of AZ: 404. |