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Lost Mine prospect, Van Horn Peak, Coastal Range, Trinity Co., California, USA

Latitude: 40°12'3"N
Longitude: 123°16'38"W

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A Mn occurrence/claim/prospect located in the SW¼ sec. 16, T3S, R8E, HM, 2.8 km (9,300 feet) WSW of Van Horn Peak (coordinates of record) (on E side of Mad River, about 2 miles E of Double A Ranch, 0.3 mile by trail from the road on the other side of Mad River), on National Forest land (located claim). Discovered 1941. Owned by F. A. Stockel and J. M. McKnight, California (1974). MRDS database accuracy for this location is not stated.

Mineralization is a Mn occurrence hosted in chert. The ore body strikes NW and dips vertically at a width of 3.05 meters. The ore is mainly stockwork ore in chert. At cut 3 manganiferous white chert rests against sandstone and shale. The ore tongues out and ends abruptly against sandstone and shale. Local rocks include Franciscan Complex, unit 1 (Coast Ranges).

Workings include unspecified surface and underground openings.

Analytical data results: The ore grade is 20 to 30% Mn.

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References

Warren, Charles R. (1941) (July 30, 1941).

Trask, Parker Davies, Ivan F. Wilson & F.S. Simons (1943), Manganese deposits of California – a summary report: California Division Mines Bulletin 125: 200.

Trask, Parker Davies (1950) Geologic description of the manganese deposits of California. California Division of Mines Bulletin 152, 378 pp.: 320-321.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10077859 & 10165771.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0061050047.

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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.
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