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USA | |
- Mesa Grande Mining District
| Pala International collection, 2003. |
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| King, Van (n.d.) Personal communcation. |
- Tourmaline Queen Mountain (Pala Mtn; Queen Mtn)
| San Diego Mining Company (2003) |
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| San Diego Mining Company, 2001. |
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| Foord, Eugene E., Martin, Robert F., Spaulding, Louis B., Mason, Roger A. (1989) Mineralogy and Paragenesis of the Little Three Mine Pegmatites, Ramona District, San Diego County, California. The Mineralogical Record, 20 (2) 101-127 |
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| San Diego Mining Company, 1995-1997. |
- Warner Springs Mining District
| Jesse Fisher (2011) Mines and Minerals of the Southern California Pegmatite Province. Rocks & Minerals 86:14-34.
Fisher, Jesse (2002) Gem and Rare-Element Pegmatites of Southern California. The Mineralogical Record, 33 (5) 363-407 |
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| Ritchie, S. 2000. History of the Carmelita Gem Mine in the 20th Century. Southern California Gem Industries web publication: July. |
Lookout Mine, Ramona, Ramona Mining District, San Diego County, California, USA