Help|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on Mindat
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralSearch 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
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Copperosity Mine (Riesner property; Houston-Arizona Copper Co. property), Sif Vaya area, Vekol District, Vekol Mts, Tohono O'odham Indian Reservation, Pinal Co., Arizona, USA

This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84): 32° 33' 31'' North , 112° 7' 45'' West
Latitude & Longitude (decimal): 32.5586111111, -112.129166667
A former surface and underground Cu-Ag-Zn-Pb-Au-Mo mine located in the E½ sec. 14, T10S, R2E (Vekol Mountains 15 minute topo map), about 2¾ miles ENE of Cathedral Rock. Discovered 1885. Produced 1890-1917. Claims include the Copperosit Copperosity No. 1 through No. 5, Copperosity Extension, Copperosity Annex and Copperosity Extension No. 5 and No. 6 (MS. 3556). Previous owners and operators include E.J. Bonsall (1890-1906); Copperosity Mining Co. (1907, 1916-17); J.P. Wagnon; Houston-Arizona Copper Co. (1922); and the Chamberlain Co. (1980'S).

Mineralization includes lens-shaped ore bodies hosted in the Abrigo formation limestone as replacement in the limestone along fault zones. Ore control was NE and NW-trending faults. The limestone beds dips 30-50NW. Quartz monzonite dikes are present. Oxidation is strong.

Regional sructures description NE and NW Trending Faults, limestone beds dipping 30-50NW, quartz monzonite dikes. Cretaceous to Tertiary granite occurs ½ mile west of the mine in the Kohakt Valley; granitic dikes reported in ADMR file.

Workings include a two compartment shaft (No. 1) (385 feet deep) with levels at 200 and 300 feet; No. 2 shaft, B shaft and various small prospecting shafts.

Mineral List

6 entries listed. 5 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.


Tenny, J.B. (1927-1929) History of Mining in Arizona: 337.

Tenney, J.B. (1934) Economic Geological Reconnaissance of Casa Grande Mining District. Arizona Bureau of Mines: 13-14.

Eising and Heineman (1936) Arizona Bureau of Mines Bulletin 140: 99.

Bureau of Land Management District Sheet 543.

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

Heindl, L.A. (1965), Mesozoic formations in the Vekol Mountains, Papago Indian Reservation, Arizona, USGS Bull. 1194-G: G2 (Figure 1).

Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 14 (Table 1).

USGS Vekol Mountains Quadrangle map.

Arizona Department of Mineral Resources Copperosity file.

Arizona Department of Mineral Resources U file.

MRDS database Dep. ID #10046278, MRDS ID #M241170; and Dep. ID #10210871, MAS ID #0040210267.

Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © and the Hudson Institute of Mineralogy 1993-2017, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: September 26, 2017 10:18:52 Page generated: March 6, 2016 14:33:08
Go to top of page