Feldspar Group from selected localities.
||[var: Perthite] Bernstein, D. 1996. Personal Communication with Scott L. Ritchie; Mineral Specimen Study (1990 Crown Jewel mine discovery description), Jan.|
||USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10261619.|
||Murdoch, J., and Webb, R. W. 1942. Notes of Some Minerals from Southern California, III: Corundum and Associated Minerals near Banning, San Jacinto Mountains, California. The American Mineralogist. 27(4):328-329.|
|Gochenour, K. L. 2000. The Rediscovery of Corundum Crystals from the San Jacinto Mountains, Riverside County, California Lithosphere bulletin, May/June. Fallbrook Gem and Mineral Society, Inc., Fallbrook, California.|