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

Ventura Mine group (Morris group; George Morris Mine; George Morris Gold claim; Old Timer Mine; Homestake Mine; Georgia Mines), Ventura Canyon, Cox Gulch, Palmetto District, Patagonia Mts, Santa Cruz Co., Arizona, USA

This page is currently not sponsored. Click here to sponsor this page.
‡Ref.: Schrader, F.C. (1915) Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, with contributions by J.M. Hill: U.S. Geological Survey Bulletin 582, 373 p., 3 sheets, scale 1:125,000: 291-292.

Moger, S.R. (1970) Geology of the west central portion of the Patagonia
Mountains, Santa Cruz County, Arizona: Davis, University of California, M.S. thesis, 60 p.

Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 74 (Table 4).

Arizona Department of Mineral Resources Homestake Mine file & Old Timer Mine file.

Arizona Bureau of Mines card file Santa Cruz County.

U.S. Bureau of Mines - Arizona Bureau of Geology and Mineral Technology file data.

U.S. Bureau of Mines Coronado National Forest Study.

MRDS database Dep. ID file #10037098, MRDS ID #M030395; and, Dep. ID #10137351, MAS ID #0040230308; and, Dep. ID #10210665, MAS ID #0040230394.

A former small underground Cu-Ag-Au-Pb-Zn-Mn-Mo mine located in the center (NE¼SW¼) of sec. 1, T.23S., R.15E, 1 mile SSW of the European Mine, 13 miles NE of Nogales in Cox Gulch, on National Forest land. The property consists of 130 claims, presumed to be unpatented, in 1965. Produced 1913-1950. Owned at times, or in part, by Mr. A.S. Henderson; Ventura Mines,Inc.; Mr. G.W. Morris; and, Mr. Rupert Beyerle (Byerle ?). Operated by the Arizona Smelting and Refining Co.(1979). Owned by Noranda Mines, Ltd. (1979).

Mineralization is quartz-gouge veins with spotty pyrite, chalcopyrite, chalcocite and minor galena and sphalerite, roughly banded, along fissures and joints in strongly silicified and weakly mineralized Precambrian metamorphosed volcanics and sediments intruded by Jurassic granite, which is found 0.25 mile from the deposit. The quartz-gouge veins have unknown dimensions. The large ore lens associated with the shear zone is 500 feet long, 30-200 feet wide, and dips 70 degrees and plunges NE. Oxidation produced abundant iron oxide and psilomelane. Alteration includes silicification, oxidation (Sericite-Quartz-Tourmaline). The host rock unit is the Mt. Wrightson formation.

Workings include tunnel operations and total 1524 meters in length. The series of tunnels are on the E side of the mountain, one above the other. Extensive diamond drilling was conducted on the property. Sporadic production occurred in 1913 and from 1933 through 1950. Some 440 tons of ore were produced, averaging about 6% Cu, 16 oz. Ag/T, 1% Pb, and 0.2 oz. Au/T.

Mineral List

10 entries listed. 7 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.
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 25, 2019 12:15:52 Page generated: January 13, 2015 07:17:18
Go to top of page