Sericite from San Diego County, California, USA
USA | |
| Donnelly, M. (1934): Geology and Mineral Deposits of the Julian District. In: California Journal of Mines and Geology, Vol 30, No 1. State Mineralogists Report XXX. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| USGS MRDS database (2005) loc. file ID #10034318. |
| SDSU Geology Department unpublished field trip guide, circa 1980. |
| Jahns, Richard Henry & Wright, Lauren A. (1951), Gem and lithium-bearing pegmatites of the Pala district, San Diego County, California. California Division of Mines Special Report 7-A: p. 31. |