SUPPORT US. If mindat.org is important to you, click here to donate to our Fall 2019 fundraiser!
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Bernard property (Bernard Cinnabar Mine; Bernard claim; Amador Mine; Amador Quicksilver Mine), Brandon Corner, Shingle Springs District, West Belt, El Dorado Co., California, USA

This page is currently not sponsored. Click here to sponsor this page.
 
Latitude & Longitude (WGS84): 38° 34' 55'' North , 120° 52' 49'' West
Latitude & Longitude (decimal): 38.5819444444, -120.880277778


A former Hg mine located in sec. 4, T8N, R10E, MDM, about 4.6 km E of Brandon Corner and 2 miles W of Nashville, on the western slope of Logtown Ridge, along Fanny Creek, S of China Mountain, on private land. Owned by J. L. Schneider (1956). First produced in 1860. MRDS database stated accuracy for this location is 100 meters.

NOTE: USGS MRDS database file #10236161 presents MRDS file #10162692 as a related file. This latter file has no apparent relationship whatsoever. Also, MRDS file #10040662 places this locality in the Nashville District, which is on the Mother Lode. This locality is W of (off of) the Mother Lode.

Mineralization is hosted in slate and quartzite and is related to rhyolite dikes. The ore body is 15.24 meters wide. Vermilion coats the walls of old workings (observed in the 1860's (Aubury). Local rocks include Mesozoic volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains).

Workings include surface and underground openings with an overall depth of 22.86 meters.

Production data are found in: Holmes, Jr., G.W. (1965), Mercury in California: in: U.S. Bureau of Mines Information Circular 8252.

Mineral List


2 valid minerals.

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Aubury, Lewis E. (1903), The quicksilver resources of California: California Mining Bureau Bulletin 27.

Bradley, W.W. (1918), Quicksilver resources of California, with a section on metallurgy and ore dressing: California Mining Bureau. Bulletin 78, 389 pp.

Logan, Clarence August (1926), El Dorado, Shasta and Trinity Counties: California Journal of Mines and Geology, California Mining Bureau. (Report 22): 22: 445.

Clark, Wm. B. & D.W. Carlson (1956), Mines and mineral resources of El Dorado County, California: California Journal of Mines and Geology (Report 52): 52(4): 438, 576.

Holmes, Jr., G.W. (1965), Mercury in California: in: U.S. Bureau of Mines Information Circular 8252.

Bailey, E.H., USGS, personal files.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 114.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10040662 & 10236161.

U.S. Bureau of Mines, Minerals Availability System (MAS) file #0060170230.

 
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: November 15, 2019 02:50:36 Page generated: May 3, 2017 05:09:04
Go to top of page