California; Danzinger Mine, Bonnifield District, Denali Borough, Alaska, USA
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Geology: The California lode mine contains small veins of complex ore in schist. The most valuable component of the ore is silver; however, it also contains some gold, considerable copper, and a little lead (Smith, 1936, p. 24). Ore minerals include a lead-antimony sulfide (probably jamesonite), bismuthinite, arsenopyrite, pyrite, stibnite, chalcopyrite, and argentiferous galena (Joesting, 1943 [ATDM Pamph. 2]; White and others, 1952). Ore samples assayed 0.27 ounces of gold per ton and 259 ounces of silver per ton; one sample contained 600 ounces of silver per ton (Joesting, 1943 [ATDM Pamph. 2]). A few carloads of ore were said to have been produced (Wedow and others, 1952).
Workings: Little is known about this mine.
Production: A few carloads of ore were said to have been produced (Wedow and others, 1952).
Commodities (Major) - Au; (Minor) - Ag, Bi, Cu, Pb, Sb
Development Status: Yes; small
Deposit Model: Polymetallic vein (Cox and Singer, 1986; model 22c)
8 entries listed. 8 valid minerals.
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Berg, H.C., and Cobb, E.H., 1967, Metalliferous lode deposits of Alaska: U.S. Geological Survey Bulletin 1246, 254 p. Cobb, E.H., 1972, Metallic mineral resources map of the Fairbanks quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-410, 1 sheet, scale 1:250,000. Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Fairbanks quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-662, 174 p. Joesting, H.R., 1943, Strategic mineral occurrences in interior Alaska, supplement to pamphlet no. 1: Alaska Territorial Department of Mines Pamphlet 2, 26 p. Smith, P.S., 1936, Mineral industry of Alaska in 1934: U.S. Geological Survey Bulletin 868-A, p. 1-91. Smith, P.S., 1937, Mineral industry of Alaska in 1935: U.S. Geological Survey Bulletin 880-A, p. 1-95. Wedow, Helmuth, Jr., White, M.G. and Moxham, R.M., 1952, Interim report on an appraisal of the uranium possibilities of Alaska: U.S. Geological Survey Open-File Report 51, 123 p. White, M. G., West, W. S., Tolbert, G. E., Nelson, A. E., and Houston, J. R., 1952, Preliminary summary of reconnaissance for uranium in Alaska: U.S. Geological Survey Circular 196, 17 p.