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USA | |
| Alfredo Petrov field collected specimen |
| 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. |
- Cooper Canyon Mining District
| Nicolas J. Rose |
| Nicholas J. Rose |
| Woodford, A.O., Crippen, R.A., and Garner, K.B. (1941) Section Across Commercial Quarry, Crestmore, California. American Mineralogist: 26: 351-381 (366). |
| Woodford, A.O., Crippen, R.A., and Garner, K.B. (1941) Section Across Commercial Quarry, Crestmore, California. American Mineralogist: 26: 351-381. |
| DeVito, Fred, Ordway, Al (1984) The Jensen Quarry, Riverside County, California. The Mineralogical Record, 15 (5) 273-290 |
| Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 183. Rocks & Minerals (1944): 19: 2 Wahlstrom, E.E. (1939), Graphic granite: American Mineralogist: 24: 681-698 |
| USGS Open File report 2010-5220 |
- Music Valley deposit (Music Valley Rare Earth deposit)
| CDMG OFR 94-11 " Mineral Land Classification of the Eastern Half of Riverside Co. CA" |
| Alfredo Petrov, field collected specimens |
| Rob Lavinsky photo |
| Smith, D., and Albee, A.L. (1967): Contributions to Mineralogy and Petrology 16, 189-203. |
Jensen Quarry, Jurupa Mountains, Jurupa Valley, Riverside County, California, USA