- Tourmaline Queen Mountain (Pala Mtn; Queen Mtn)
| Fisher, Jesse (2002) Gem and Rare-Element Pegmatites of Southern California. The Mineralogical Record, 33 (5) 363-407 Kunz, George F. (1905) Gems, Jewelers' Materials, and Ornamental Stones of California. Bulletin 37 (2nd ed.) California State Mining Bureau |
Stewart Mine, Tourmaline Queen Mountain, Pala, Pala Mining District, San Diego County, California, USA