Sphalerite from Crown King, Pine Grove Mining District, Bradshaw Mountains (Bradshaw Range), Yavapai County, Arizona, USA
USA | |
| Wilson, E.D., et al (1934), AZ Bur. Mines Bull. 137: 56-57 Lindgren, W. (1926), USGS Bull. 782: 168-169. |
| Lindgren, W. (1926), USGS Bull. 782: 171. |
| Scovil, Jeffrey A., Wagner, Les (1991) The Fat Jack Mine, Yavapai County, Arizona. The Mineralogical Record, 22 (1) 21-28 |
Wilson, E.D., et al (1934), AZ Bur. Mines Bull. 137: 58-59 Lindgren, W (1926) USGS Bull. 782: 164. |