SUPPORT US. If 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:
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

Unnamed Cu-Fe-silica occurrence [1] (Unnamed shaft), Mountain Spring, Argus District (Kellcy District; Sherman District), Argus Mts (Argus Range), Inyo Co., California, USA

This page is currently not sponsored. Click here to sponsor this page.
A Cu-Fe-silica occurrence located 7.2 km (4.5 miles) NE of Mountain Spring, and NW of La Mott Spring (8.7 air miles due E of Volcano Butte), in the Etcharren Valley, on military reservation land (China Lake Naval Ordnance Test Station). MRDS database accuracy for this location is not stated.

Mineralization is a quartz vein deposit hosted in Late Cretaceous quartz diorite. The ore body is tabular in form (pinch & swell). It strikes N66W and dips 62S. The vein is 2 to 2½ feet wide at surface. It is part of a shear zone which is exposed hanging wall to footwall. The vein pinches down to nothing at 54 feet of depth. The host rock in the vicinity of the shaft is severely altered, chlortized and slickensided. Local rocks include Quaternary alluvium and marine deposits.

Workings include underground openings with a length of 18.9 meters, overall length of 18.9 meters and an overall width of 2.44 meters. The shaft was driven down the dip of the vein shear zone. Below the vein pinch out the workings were shallowed (flattened) in an attempt to pick up the continuation of the vein, but to no avail.

Mineral List

5 entries listed. 3 valid minerals.

The above list contains all mineral locality references listed on 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 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.


Durbin, W.F., G. Hobson, reconnaissance, mapping & sampling completed 4-14-8.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10036272.

Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: August 19, 2019 13:07:49 Page generated: January 17, 2015 13:25:40
Go to top of page