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Blue Ravine occurrence, Folsom, Folsom District, Sacramento Co., California, USA

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References

Carlson, D.W. (1955), Sacramento County placer mines and gold dredging: California Journal of Mines and Geology (Report 51): 51(2): 143, 190.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10163987.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060670062.

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Copyright © Jolyon Ralph and Ida Chau 1993-2012. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
Current server date and time: 29th Nov 2012 23:12:42