Microcline from Aguanga Mountain, Oak Grove, Aguanga Mountain Mining District (Smith Mountain Mining District), San Diego County, California, USA
USA | |
| Fisher, Jesse (2002) Gem and Rare-Element Pegmatites of Southern California. The Mineralogical Record, 33 (5) 363-407 |
Tucker, W. B. and Reed, C. H. (1939) Los Angeles Field District, Mineral Resources of San Diego County - Gems. California Journal of Mines and Geology. Quarterly Chapter of State Mineralogist's Report 35, January, 1939, No. 1. State of California, Department of Natural Resources, Division of Mines: Page 40. |