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Cyclone Gap Mine (Mammoth Mine), El Capitan, Klamath Mts, Siskiyou Co., California, USA

Latitude: 41°51'45"N
Longitude: 123°37'18"W

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A former Cr mine located in the SW¼ sec. 15, T17N, R5E, MDM, 1.1 km (3,500 feet) SW of El Capitan (coordinates of record), in the headwaters area of Clear Creek.

Mineral List

~~Chromite~~
Clinochlore
var: Chromian Clinochlore

Laurite
Magnesiochromite

Uvarovite

5 entries listed. 3 valid minerals. 1 erroneous literature entry.

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References

Rynearson, Garn Arthur & Clay T. Smith (1940), Chromite deposits in the Seiad quadrangle, Siskiyou County, California: USGS Bulletin 922-J: 304.

Allen, John E. (1941), Geologic investigation of the chromite deposits of California: California Division Mines Report 37: 123.

California Journal of Mines and Geology (1947): 43(4): 421.

Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 122-126.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 153 (map 4-4), 435, 499.

Economic Geology (1986) 81: 1261-1271.

Minerals Availability System (MAS) database file No. (U.S. Bureau of Mines, Western Field Operations Center (WFOC), Mineral property file (MPF)) #0060931166.

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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: 2nd Dec 2012 09:54:15