Herderite from California, USA
USA | |
| Leavens, Peter B., Dunn, Pete J., Gaines, Richard V. (1978) Compositional and refractive index variations of the herderite-hydroxyl-herderite series. American Mineralogist, 63 (9-10) 913-917 |
| Fisher, Jesse (2002) Gem and Rare-Element Pegmatites of Southern California. The Mineralogical Record, 33 (5) 363-407 |
Fisher, Jesse (2002) Gem and Rare-Element Pegmatites of Southern California. The Mineralogical Record, 33 (5) 363-407 | |
| Foord, Eugene E. (1977) Famous Mineral Localities: the Himalaya Dike System, Mesa Grande District, San Diego County, California. The Mineralogical Record, 8 (6) 461-474 |
| Kampf, A. R., et al (2003), Tourmaline Discovery at the Cryo-Genie Mine, San Diego County, California, Rocks & Minerals 78(3), 156-168. |