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

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Latitude & Longitude (WGS84): 31° 49' 59'' North , 110° 22' 59'' West
Latitude & Longitude (decimal): 31.8330555556, -110.383055556
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

2 entries listed. 1 valid mineral.

The above list contains all mineral locality references listed on 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 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.


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Dale, V.B. (1957) U.S. Bureau of Mines Review of Examination Report, N. 36 (unpublished): 1.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Lemmon, D.M., unpublished data.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