Collicello & Luray mine groups

Ownership

Gray, Cooper, McCutchen & Hogan⁵

Location

31.4653, -110.7680¹⁰

23S 15E N. Cen. 1⁵

Mineral Products

Cu, Ag, Au⁵

Geology

Roughly banded, narrow quartz stringers and veinlets with pyrite and chalcopyrite, oxidized largely to Covellite and chalcocite near the surface, in Jurassic granite intrusive that is strongly silicified and pyritized.⁵

Type of Operation

Tunnel, shaft, and adit operations. Worked intermittently from early 1900's through 1917, producing some 100 tons of selected ore averaging 20% Cu, 9 oz. Ag/T and 0.2 oz Au/T⁵.

References

1. Mineral Appraisal of Coronado National Forest, Part 12, Santa Rita Mountains Unit, MLA11-94 (1994). SR 591-609
   http://repository.azgs.az.gov/sites/default/files/dlio/files/nid1813/usbm_mla_011-94.pdf
2. Mining in the Santa Rita and Patagonia Mountains of Arizona, U.S. Department of Interior, 1915. Republished 2014 by Kerby Jackson.
3. Mike Bertram, 11/21/23
4. USGS Mineral Resources Data System - possibly using NAD72 (https://mrdata.usgs.gov/mrds/map-commodity.html#home)
5. Index of Mining Properties in Santa Cruz County by Staton B. Keith, bulletin 1991, Arizona Geological Survey, 1975
6. Geology of the Three R Mine, Palmetto Mining District, Santa Cruz County, Arizona by Paul Handverger, MS thesis 1963, University of Arizona
7. https://mrdata.usgs.gov/mrds/show-mrds.php?dep_id=10046338
8. https://azdeq.gov/Three-R-Mine
9. https://tucson.com/news/local/three-r-mine-contributed-to-arizonas-rep-for-copper-production/article_2a25e1e1-7280-5fd5-be97-a40732a39b1b.html
10. mindat.org