| 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. Hess, F.L. (1917), Tungsten minerals and deposits, USGS Bull. 652: 33, 64.. |
Cave Creek Mining District, Palo Verde Mountains, Maricopa County, Arizona, USA