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Murray Mine, Keswick, Shasta District, Klamath Mts, Shasta Co., California, USA

Latitude: 40°37'43"N
Longitude: 122°28'30"W

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A former Au mine located in sec. 18, T32N, R5W, MDM, 1.0 km (3,400 feet) NW of Keswick, at the Spring Creek Reservoir dam. Property is comprised of 1 claim. Mine was operational prior to 1894. MRDS database stated accuracy for this location is 1,000 meters.

Mineralization is hosted in porphyry and quartz syenite. The ore body strikes N40E and dips 50S at a thickness of 1.83 meters. The vein footwall is quartz porphyry and the hanging wall is syenite. Ore is of low grade. Local rocks include Mesozoic granitic rocks, unit 4 (Klamath Mountains and Northern Sierra Nevada).

workings include underground openings comprised of a 400 foot adit, 2 winzes at 25 feet each, plus stoping. The ore shoot is 6 x 230 feet.

Production data are found in: Crawford (1894).

Mineral List

Gold

Manganite

2 entries listed. 2 valid minerals.

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References

Brown, G.C. (1916b), Shasta, Siskiyou, Trinity Counties: California Mining Bureau. Report 14: 795.

Crawford, James John (1894), Twelfth report of the State Mineralogist: California Mining Bureau. Report 12: 253.

Averill, Charles V. (1939), Mineral resources of Shasta County: California Journal of Mines and Geology, California Division of Mines (Report 35): 35(2): 183.

Lydon, Philip Andrew and O’Brien, J.C. (1974) Mines and mineral resources of Shasta County, California. California Division of Mines and Geology County Report 6, 154 pp.

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 254.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10034466 & 10286887.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060890181.

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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: 17th Jun 2012 15:00:57