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Apache Chief Mine group, Plomosa District, Plomosa Mts, Yuma Co., Arizona, USA

Latitude: 33°37'20"N
Longitude: 114°3'43"W
A Cu-Ag-Au-Fe-Pb-Zn mine group located in the NE¼ sec. 12, T3N, R18W. Owned at times, or in part, by early Spanish and/or French operators; Eichelberger & Rivera; Success Copper Mining Co.; Arizona Success Mining Co.; Hickman; Richman; Apache Mines Syndicate; Old Apache Mines Co.; Arizona Apache Mines Co.; Aplington & Ehlers; Williams; Aplington; Apache Metals, Inc.; Brown; Klix; Swires; and, the Apache Chief Mining Co.

Mineralization is spotty copper and silver minerals with minor gold, lead, and zinc, largely oxidized, in irregular, small, lensing fingers, pods and ore shoots along a shear zone with quartz in a thrust-faulted jumble of contact metamorphosed Paleozoic limestone, Mesozoic continental red beds, and Laramide conglomerates, intruded by diorite dikes and small quartz porphyry intrusives. Enrichment of copper and silver by oxidztion. Strong iron gossan.

Workings include a shaft 225 feet deep (1881) and a 100 foot long tunnel (1881) with extensive underground workings. Total estimated and recorded production for the group, from intermittent operations from at least the early 1860's through 1967, would be some 2,100 tons of ore averaging about 11% Cu, 12 oz. Ag/T, and 0.03 oz. Au/T. About 700 pounds of lead were also produced.

References

The Resources of Arizona - A Manual of Reliable Information Concerning the Territory, compiled by Patrick Hamilton (1881), Scottsdale, AZ: 75.

Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geological Survey Branch Bull. 192, Index of Mining Properties in Yuma County, Arizona: 166 (Table 4).

Arizona Bureau of Mines file data.

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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: 4th Jul 2011 05:10:06
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