Clay minerals from Pala, Pala Mining District, San Diego County, California, USA
USA | |
| Stephenson, J. (2007), Pala District Opens Wide: Oceanview Mine Strikes It Big. Mineral News: Pala International, Fallbrook, CA. December. |
| Schaller, W. T. 1919. Gems & Precious Stones. Mineral Resources U.S., 1916, Part II - Nonmetals. Department of Interior, US Geological Survey, Government Printing Office, Washington p. 897. |
Jahns, Richard Henry & Lauren A. Wright (1951), Gem and lithium bearing pegmatites of the Pala district, San Diego County, California: California Division Mines Special Report 7-A: 57-59. | |
San Diego Mining Company (1998) | |
San Diego Mining Company, 2000. |