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USA | |
| Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Weber, F. Harold Jr. (1963) Geology and mineral resources of San Diego County, California. County Report 3. California Division of Mines and Geology Van Nostrand Reinholt Press: 438. |
| Weber, F. Harold Jr. (1963) Geology and mineral resources of San Diego County, California. County Report 3. California Division of Mines and Geology California Division of Mines and Geology, County Report 3, 309 pp.: No. 16, p. 65. |
- Mesa Grande Mining District
| Foord, Eugene E. (1977) Famous Mineral Localities: the Himalaya Dike System, Mesa Grande District, San Diego County, California. The Mineralogical Record, 8 (6) 461-474 |
- Tourmaline Queen Mountain (Pala Mtn; Queen Mtn)
| Sheppard, J. B. (2008), History of the surface prospects and underground mining developments made along the northern portion of the Stewart pegmatite personal communication with Scott L. Ritchie, San Diego Mining Company (SDMC). June/July. |
| Sheppard, J. B. (2008), History of the surface prospects and underground mining developments made along the northern portion of the Stewart pegmatite personal communication with Scott L. Ritchie, San Diego Mining Company (SDMC). June/July. |
| San Diego Mining Company (2003) |
| San Diego Mining Company, 2001. |
| Fender, M. 2007. Written correspondence between Michael Fender of Poway and Scott L. Ritchie of Temecula, CA. Details of the "Old Hag" prospects near Van Dam Peak: Feb. |
| Fender, M. 2007. Written correspondence between Michael Fender of Poway and Scott L. Ritchie of Temecula, CA. Details of the "Old Hag" prospects near Van Dam Peak: Feb. |
| Kunz, George F. (1905) Gems, Jewelers' Materials, and Ornamental Stones of California. Bulletin 37 (2nd ed.) California State Mining Bureau |
| San Diego Mining Company (1996), Field investigations of the Sunshine Valley area undocumented pegmatites and gemstone prospects. Ramona, San Diego County, California. |
| Foord, Eugene E., Martin, Robert F., Spaulding, Louis B., Mason, Roger A. (1989) Mineralogy and Paragenesis of the Little Three Mine Pegmatites, Ramona District, San Diego County, California. The Mineralogical Record, 20 (2) 101-127 |
| Foord, Eugene E., Martin, Robert F., Spaulding, Louis B., Mason, Roger A. (1989) Mineralogy and Paragenesis of the Little Three Mine Pegmatites, Ramona District, San Diego County, California. The Mineralogical Record, 20 (2) 101-127 |
| San Diego Mining Company, 1995-1997. |