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Clark Mine, Rincon Mountain, Rincon, Rincon District, San Diego Co., California, USA

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Latitude & Longitude (WGS84): 33° 15' 47'' North , 116° 56' 20'' West
Latitude & Longitude (decimal): 33.2630555556, -116.938888889
A gem-bearing pegmatite mine located in the NE¼SW¼ sec. 36, T10S, R1W, SBM, 3.3 km (2.1 miles) SSE of Rincon.

Mineral List

24 entries listed. 13 valid minerals.

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Rogers, Austin Flint (1910b), Minerals from the pegmatite veins of Rincon, San Diego County, California: Columbia University, School of Mines Quarterly: 31: 217.

Murdoch, Joseph (1946), Progress on revision of Bulletin 113 “Minerals of California,” with notes on some new mineral occurrences: California Division Mines Report 42: 197-198; […(abstract): Geological Society of America Bulletin: 57: 1256]: 198.

Hanley, J. B. (1951), Economic Geology of the Rincon Pegmatites, San Diego County, California. Department of Natural Resources, California Division of Mines, Special Report 7B: 24 pages, illus., maps: 17, 23.

Sinkankas, J. (1959), Gemstones of North America, Vol. 1. Van Nostrand Reinhold, New York, 494 p.

Weber, F. H. (1963a), Geology and mineral resources of San Diego County, California. California Division of Mines and Geology, County Report 3: 100, 106, 114, 213.

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 79, 155, 215, 286, 346.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 177, 317, 348, 367, 368, 389, 426.

Fisher, J. (2002), Gem and rare-element pegmatites of southern California. Mineralogical Record: 33: 389-390.

Fisher, Jesse (2011), Mines and Minerals of the Southern California Pegmatite Province. Rocks & Minerals: 86: 14-34.

Mineral and/or Locality  
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