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Last Chance claim (2), Copper Hill, South Fork District, Klamath Mts, Trinity Co., California, USA

Latitude: 40°25'24"N
Longitude: 123°18'2"W

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A Mn occurrence located in the NW¼ sec. 32, T1N, R8E, HM, 3.4 km (2.1 miles) E of Copper Hill, along North Rattlesnake Creek (on a ridge E of North Rattlesnake Creek), on National Forest land. MRDS database accuracy for this location is not stated.

Mineralization is a Mn deposit hosted in chert. Soft black oxide ore outcrop 3 feet wide and 4 feet long, in light colored chert and brown manganiferous chert. NE of the outcrop, a body of white to gray chert strikes N45W. Serpentine is exposed to the N. Local rocks include Paleozoic marine rocks, undivided, unit 9 (Western Klamath Mountains).

Analytical data results: Estimated 30% Mn.

Mineral List

'Manganese Oxides'

1 entry listed.

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References

Trask, Parker Davies, Ivan F. Wilson & F.S. Simons (1943), Manganese deposits of California – a summary report: California Division Mines Bulletin 125: 199.

Trask, Parker Davies (1950) Geologic description of the manganese deposits of California. California Division of Mines Bulletin 152, 378 pp.: 320.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10033696 & 10231729.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #006105

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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: 21st Sep 2012 12:58:57