Mindat Logo

Old Yuma Mine (Yuma Mine), Saguaro National Monument, Amole District, Tucson Mts, Pima Co., Arizona, USA
This page is currently not sponsored. Click here to sponsor this page.

Old Yuma Mine, Saguaro National Monument, Amole District, Tucson Mts, Pima Co., Arizona, USA

Photo: 2008 Michael C. Roarke
Latitude: 32°18'53"N
Longitude: 111°7'16"W
Ref.: Guild, F.N. (1910), The Mineralogy of Arizona, The Chemical Publishing Co., Easton, PA.

Guild, F.N. (1911), Mineralogische Notizen, Zeit. Krystal. und Mineral.: 49: 321-331.

University of Arizona Bull. 41 (1916-17), Mineralogy of Useful Minerals in Arizona: 59, 61.

Guild, F.N. (1917), A microscopic study of the silver ores and their associated minerals, Economic Geology: 12: 297-353.

Jenkins, O.P., and Wilson, E.D. (1920) A geological reconnaissance of the Tucson and Amole Mountains, with Notes on the southern section of the Amole mining district, by M.A. Allen: Arizona Bureau of Mines Bulletin no. 106, 29 p.: 6, 16-17, Plate I.

Newhouse, W.H. (1934), The source of vanadium, molybdenum, tungsten and chromium in oxidized lead deposits, American Mineralogist: 19: 209-220.

Frondel, C. (1935), Catalog of mineral pseudomorphs in the American Museum, Bull. American Museum of Natural History: 67.

Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 70, 73, 80.

Bideaux, R.A., et al (1960), Some new occurrences of minerals of Arizona, Arizona Geological Society Digest: 3: 53-56.

Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 102 (Table 4).

Jones, D. (1983). "Famous mineral localities: the Old Yuma mine." Mineralogical Record: 14(2): 95-107, 326.

Niemuth, N.J. (1987), Arizona Mineral Development 1984-1986, Arizona Department of Mines & Mineral Resources Directory 29, 46 pp.

Rocks & Minerals (1988): 63: 310 & 328.

Rocks & Minerals (1989): 64: 58.

Rocks & Minerals (1990): 65: 23.

Sawyer, M.B., Gurmendi, A.C., Daley, M.R., and Howell, S.B. (1992) Principal Deposits of Strategic and Critical Minerals in Arizona, U.S. Bureau of Mines Special Publication, 334 pp.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 158, 201, 225, 229, 307, 331, 410, 420, 426.

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10103758, MRDS ID M050625; and, Dep. ID #10234968, MAS ID #0040190345.

A former small surface and underground Pb-Cu-Zn-Mo-Ag-Au (V) mine located in the center of sec. 9, T.13S., R.12E, 1 mile ENE of the Tucson Mountain Park. Owned/operated, in whole or in part, by Col. Randolph; the International Ore Separation Co.; Reilly Mines Co.; Consolidated Mining And Milling (1986); and the Tucson Ore Milling Co.

Mineralization is lens-shaped ore masses with partly oxidized base metal sulfides with spotty wulfenite and vanadinite, and quartz and calcite gangue, in a steeply-dipping, lensing, and faulted orebody along a fracture zone cutting Cretaceous andesite and associated with a Laramide porphyritic intrusive. The ore zone is 5 meters wide, strikes N60E and dips 40S. Ore concentration was supergene enrichment. Alteration includes argillitic.

Workings include a shaft and underground workings to at least the 300 foot (95 meter) level. A later open cut exposed underground stopes; numerous shafts, pits. The development of underground workings and heap leach facility occurred in 1984-1986. This mine produced sporadically from 1916 through 1947, with a total of some 5,700 tons of ore averaging about 4% Pb, 1% Cu, 0.6% Zn, 0.3% Mo, 1 oz. Ag/T and 0.1 oz. Au/T. ($3/t Au - period values). Average mine ore contained 2-3% wulfenite.

Mineral List


17 entries listed. 17 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.
Mineral and/or Locality  
Search Google  
Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
Current server date and time: December 21, 2014 12:08:19 Page generated: November 20, 2014 15:26:37
Mineral and Locality Search
and/or Locality:
Fade toolbar when not in focusFix toolbar to bottom of page
Hide Social Media Links
Slideshow frame delay seconds