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USA | |
| Pala International, Inc. (2011), Specimen with label on display at the Collector, Fallbrook, San Diego County, California April 19th. |
| Mineral Specimen Study (1990 Crown Jewel mine discovery description), Jan. Bernstein, D. 1996. Personal Communication with Scott L. Ritchie |
| Rocks & Minerals, May, 1998 |
| Webb, R. W. 1942. Two Andalusite Pegmatites from Riverside County, California. The American Mineralogist. 28(11-12):581-593. |
| Osborn, P. 2006. Personal communication between Philip Osborn, Hemet CA. (discoverer/owner) and Scott L. Ritchie, SDMC 07/25. |
| Neal Rose |
| Webb, R. W. 1942. Two Andalusite Pegmatites from Riverside County, California. The American Mineralogist. 28(11-12):581-593. |
| Crother R. A. (1992) Host Rock Lithologies and Structural Constraints on Complex Pegmatites in the San Jacinto Mountains of California. Department of Geological Sciences, California State Polytechnic University, Pomona June. |
| San Diego Mining Company (1998), Sly Rick lode field analysis and valuable mineral discovery, Jan. |
| San Diego Mining Company (1998), Anita mine field analysis, Jan. |
Fano Mine, Little Cahuilla Mountain, Cahuilla Mining District, Riverside County, California, USA