‡Ref.: Wilson, E.D. (1941), Tungsten deposits of Arizona, Arizona Bureau of Mines Bull. 148: 43-44.
Holser, W.T. (1949) Spectrographic Analysis for W and Be, Geochemistry, USGS.
Warner, L.A., Holser, W.T., Wilmarth, V.R., and Cameron, E.N. (1959) Occurrence of nonpegmatitic beryllium in the United States: U.S. Geological Survey Professional Paper 318, 198 p., 5 sheets, scales 1:480, 1:960, 1:4,800, 1:500,000: 98-100.
Dale, V.B., Stewart, L.A., and McKinney, W.A. (1960), Tungsten deposits of Cochise, Pima, and Santa Cruz Counties., Arizona, U.S. Bureau of Mines Report of Investigation 5650: 43-45.
Cooper, J.R. & L.T. Silver (1964), Geology and Ore Deposits of the Dragoon Quadrangle, Cochise County, Arizona, USGS PP 416: 188-189.
Meeves, H.C. (1966), Nonpegmatite beryllium occurrences in Arizona, Colorado, New Mexico, Utah and four adjacent states, US Bureau of Mines Report of Investigation 6828: 56.
Livingston, D.E., Damon, P.E., Mauger, R.L., Bennett, R., and Laughlin, A.W. (1967) Argon 40 in cogenetic feldspar-mica mineral assemblages: Journal of Geophysical Research: 72(4): 1361-1375.
Keith, Stanton B. (1973), Arizona Bureau of Geology & Mineral Technology, Geol. Sur. Branch Bull. 187, Index of Mining Properties in Cochise County, Arizona: 60 (Table 4).
MRDS database Dep. ID file #10039394, MRDS ID #M050021; and, Dep. ID #10161572, MAS ID #0040030223.
A former small surface and underground W-Cu-Pb-Zn-Te-Mo-Bi-Be mine located on 12 unpatented claims in the NW ¼ sec. 6, T.16S., R.22E., about 12 road miles NE of Benson. Discovered in 1913 by J.J. Wien. Started 1916 and closed during WWI. Owned at times, or in part, by Gold, Silver, and Tungsten, Inc. (Jan 1940); Kramer Mining & Milling Co.; and the Standard Tungsten Corp.
Mineralization consists of pockets of calcite containing disseminated sulfides, scheelite and exsolved tetradymite, beryl, chalcopyrite and other secondary minerals in a fault zone between Precambrian Pinal Schist on the east and granite on the west, which is intruded by NE-ward trending aplite dikes up to about 1 foot wide. Scheelite-bearing quartz veins crop out intermittently for some 4,000 feet along this quartz-schist contact and in the adjacent schist. These veins form eastward-dipping lenticular segments from a few inches to 6 feet wide & locally several hundred feet long, offset in places by faults. The vein filling is coarsely crystallized, dull white quartz.
Local structures include the Tungsten King Fault and Tertiary block faulting trending NNW. Regionally, Late Cretaceous or Early Tertiary N- and NW-trending folds and thrust faults overriding to NE.
Workings include a pit, an adit and shaft workings. About 12 tons of tungsten concentrates were produced intermittently from 1913 to 1954.
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