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James Mine (Nunnelley Mine; Ricky Dale Mine; San Juan Mine), Whetstone District, Whetstone Mts, Cochise Co., Arizona, USA

Latitude: 31°49'59"N
Longitude: 110°22'59"W
A former small surface and underground W mine located in West-central sec. 26 and sec. 27, T.18S., R.19E, on National Forest land. First produced 1900.

Mineralization is spotty wolframite and minor scheelite in narrow quartz veins in medium-grained, Precambrian muscovite granite along a tongue of Pinal Schist. The quartz veins are 6 inches wide and strike E-W and dip 66 degrees N. Ore assays at 2%-3% WO3.

Workings are shallow openings. A few hundred pounds of tungsten concentrates were produced in 1943-1944.

Mineral List

Scheelite
Wolframite


2 entries listed. 1 valid mineral.

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References

Ref.: Hess, F.L. (1909) Note on a wolframite deposit in the Whetstone Mountains, Arizona, in Contributions to economic geology, 1908; pt. I, metals and nonmetals except fuels: U.S. Geological Survey Bulletin 380, p. 164.

Johnson, A.L. (1954) Arizona Department of Mining and Mineral Resources Engineers Report: 1.

Dale, V.B. (1957) U.S. Bureau of Mines Review of Examination Report, N. 36 (unpublished): 1.

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: 55-56.

Keith, Stanton B. (1973), Arizona Bureau of Mines Bull. 187, Index of Mining Properties in Cochise County, AZ: 91 (Table 4).

McColly, R.A., and Scott, D.C. (1982) Mineral investigation of the Whetstone Roadless Area, Cochise and Pima Counties, Arizona: U.S. Bureau of Mines Mineral Land Assessment Open File Report MLA 129-82, 22 p.: 9.

Chatman, M.L. (1994) U.S. Bureau of Mines Open File Report Mineral Land Assessment (MLA) 2-94: 19.

Lemmon, D.M., unpublished data.

Arizona Bureau of Mines files.

MRDS database Dep. ID file #10008525, MRDS ID #D000758; and, Dep. ID #10046271, MRDS ID #M241157; and, Dep. ID #10186044, MAS ID #0040030288.


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Copyright © Jolyon Ralph and Ida Chau 1993-2012. 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.
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