Tantalite from San Diego County, California, USA
USA | |
| Todd, V. R. et al. 1987. Mineral Resources of the Sawtooth Mountains and Carrizo Gorge/ Eastern McCain Valley Wilderness Study Areas, San Diego County, California. U.S. Geological Survey Bulletin 1711-B, 26 p., maps. |
Todd, V. R. et al. (1987) Mineral Resources of the Sawtooth Mountains and Carrizo Gorge/ Eastern McCain Valley Wilderness Study Areas, San Diego County, California. U.S. Geological Survey Bulletin 1711-B, 26 p., maps. | |
| San Diego Mining Company (2009) |
Fisher, Jesse (2002) Gem and Rare-Element Pegmatites of Southern California. The Mineralogical Record, 33 (5) 363-407 | |
| San Diego Mining Company, 1995-1997. |
Lookout Mine, Ramona, Ramona Mining District, San Diego County, California, USA