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Banner Mine, Monte de Oro, Oroville (Ophir City), Butte Co., California, USA

Latitude: 39°33'4"N
Longitude: 121°31'5"W
A former lode Au mine located in secs. 28, in the NE¼ sec. 33 & in the NW & SW¼'s sec. 34, T20N, R4E, MDM, 0.7 km (2,200 feet) ESE of Monte de Oro (coordinates of record) and 5.2 km (3.2 miles) NE of Oroville. Operated by Banner Consolidated Mines, San Francisco, California (timeframe = ?) Operated by Roy D. and Jennie Livesly, Oroville, California (timeframe = ?). MRDS database stated accuracy for this location is 500 meters.

Mineralization is a Au deposit hosted in slate and quartzite. Local rocks include Mesozoic volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains).

Production data are found in: Logan (1930).

production information: $600,000 of Au produced up to 1891 (period values)(26th. Report: 370). $81,000 of Au produced 1908-1930 (period values). Worked in 1929.

Mineral List

Gold
Quartz


2 entries listed. 2 valid minerals.

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References

Crawford, James John (1896), Thirteenth report of the State Mineralogist: California Mining Bureau. (Report 13): 13: 82.

Waring, Clarence A. (1915), Mines and Mineral Resources of Butte County: California Journal of Mines and Geology (Report 15): 15: 211-212.

Logan, Clarence August (1930), Mines and Mineral Resources of Butte County, California: California Journal of Mines and Geology, California Mining Bureau (Report 26): 26(4): 369-370.

Eric, J.C. (1948), Copper in California: California Division of Mines Bulletin 144: 217.

O’Brien, J.C. (1949), Mines and mineral resources of Butte County, California: California Journal of Mines and Geology (Report 45): 45(3): 440.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10109115, 10109116 & 10138064.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060070088.

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. 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 thousands 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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