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Richards Mine (Rough and Ready Mine 1918), Peoria Flat, Chinese Camp, Tuolumne Co., California, USA

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Detailed Mineral List:

~~Chromite~~
Formula:	FeCr₂O₄
Reference:	U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.







Magnesiochromite
Formula:	MgCr₂O₄
Reference:	Cater, F.W., Jr. (1948a), Chromite deposits of Tuolumne and Mariposa Counties, California: California Division Mines Bulletin 134, part III, Chapter 1: 27-28; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 160.

2 entries listed. 1 valid mineral. 1 erroneous literature entry.

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Copyright © Jolyon Ralph and Ida Chau 1993-2011. Jobs in California, USA 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: 30th Mar 2011 07:58:55