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Silver Pass Mine, Amole District, Tucson Mts, Pima Co., Arizona, USA

Latitude: 32°11'57"N
Longitude: 111°3'24"W
Ref.: Kinnison, J.E. (1958) Geology and ore deposits of the southern section of the Amole mining district, Tucson Mountains, Pima County, Arizona: Tucson, University of Arizona, M.S. thesis, 126 p.

Ashley, R.P. (1974), Field Examination (Silver Pass Mine).

MRDS database Dep. ID file #10039676, MRDS ID #M050635.

A former small surface and underground Cu-Ag mine located in sec. 19, T14S, R13E.

Mineralization is hosted in the Safford Tuff and the Shorts Ranch Andesite. The ore strikes N60E and dips steeply to the S. Alteration is quartz-sericite-pyrite, argillitic, and pyrite-gossan.

Short's Ranch Andesite on the dump shows argillization or looks silicified (probably quartz-sericite alteration), with a few % disseminated pyrite. Some cellular limonite gossan in oxidized altered rock. Cellular limonite gossan also in the tuff in the prospect pit 55 meters west of shaft. Tuff called Safford Tuff in vicinity should probably be included in the Cat Mountain Rhyolite.

Local structures include a poorly exposed fault at the shaft collar.

Workings include a shaft and prospect pit. The shaft open but filled with trash.

Mineral List

Limonite
Muscovite
var: Sericite

Pyrite


3 entries listed. 1 valid mineral.

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Copyright © Jolyon Ralph and Ida Chau 1993-2011. Jobs in Arizona, USA Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the 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 hundreds 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: 5th Jul 2011 13:23:00
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