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

Harper Mine (Ashworth Mine; Harper group of claims; Harper property; Rincon claim), Bear Canyon, Hartford District (Huachuca Mountains District), Huachuca Mts, Cochise Co., Arizona, USA

This page is currently not sponsored. Click here to sponsor this page.
‡Ref.: Wilson, E.D. (1941), Tungsten Deposits of Arizona, Geological Series No. 14, Arizona Bureau of Mines Bull. 148: 49.

Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 81.

Dale, V.B., et al (1960), Tungsten deposits of Cochise, Pima, and Santa Cruz Counties, Arizona, U.S. Bureau of Mines Report of Investigation 5650: 35-37.

Hayes, P.T., and Raup, R.B. (1968) Geologic map of the Huachuca and Mustang Mountains, southeastern Arizona: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-509, 1 sheet, scale 1:48,000.

Keith, Stanton B. (1973), Arizona Bureau of Geology & Mineral Technology, Geol. Sur. Branch Bull. 187, Index of Mining Properties in Cochise County, Arizona: 65 (Table 4).

Ludington, S. (1984) Preliminary mineral-resource assessment of the proposed Miller Peak Wilderness, Cochise County, Arizona: U.S. Geological Survey Open-File Report 84-0293, 10 p.: 3-4.

Tuftin, S.E. and Armstrong, R.C. (1994) U.S. Bureau of Mines Open File Report Mineral Land Assessment (MLA) 1-94.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 362.

MRDS database Dep. ID file #10039572, MRDS ID #M050354; and, Dep. ID #10185976, MAS ID #0040030152.

A former small surface and underground Au-Ag-W-Cu-Pb mine located on 2 unpatented claims in South-central sec. 30, T.23S., R.20E., lower Bear Canyon, at approximately 6,000 feet of altitude, on private land. First produced 1900. Owned by the Tungsten Mining Co.

Mineralization is 4 quartz veins which crop out, with scheelite in two of them. The thickness is 6 inches at surface to 12-18 inches thick from dump material. These veins strike Northward (N25W - N20-30E) and dip from medium angles to almost vertical (30-60SW or 40NW). Prevailing rocks are Mesozoic maroon shale and sandstone intruded on the NE and South by granite. One vein dips 55º West and averages about 1½ feet (0.5 meters) thick. Mineralization is sporadic gold and silver values with scattered scheelite and sulfides in coarsely-crystalline, grayish-white quartz veins cutting Cretaceous Glance Conglomerate and andesitic volcanics containing exotic blocks of Paleozoic limestone.

Workings are surface and shallow shaft workings. Minor production of gold-silver ore was made in the early 1900's. Several hundred tons of tungsten concentrates were produced in 1941. The gold grade was reported as 0.31 oz/ton.

Mineral List

7 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: October 21, 2019 01:03:04 Page generated: January 15, 2015 16:02:01
Go to top of page