Mine detail: Ore Knob Mine

Previously called 'Ore Knob Copper Mine'

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Location

Lat / long: 36.39948, -81.32762

Resource(M)

Primary: Copper
Secondary: Zinc, Gold, Silver
Tertiary: Iron, Nickel, Cobalt
Ore: Chalcopyrite, Galena, Pyrite, Pyrrhotite, Sphalerite
Gangue: Actinolite, Biotite, Calcite, Epidote, Garnet, Hornblende, Quartz, Albite, Tourmaline
Orebody form: LENSES AND VEIN-LIKE
Other material: Alabandite, Bornite, Chalcocite, Chrysocolla, Magnetite, Malachite, Marcasite, Prochlorite
Discovery year: 1855

Production

Operation type: Underground
Development status: Past Producer
Production years: 1855-1856, 1873-1883, 1896, 1913, 1917, 1927, 1955-1962
First production started: 1855
Last production ended: 1962

Geology

Host rock:Ashe Formation
Host type:Amphibole Schist

References

MRDSW101464
MAS370090006
DEP10150868
Reference{Deposit:: Laurence, R. A., 1968, Ore Deposits Of The Southern Appalachin Ridge, J. D., Ed., Ore Deposits Of The United States, 1931, (Graton-Sales Volume) V. 1/ Am. Inst. Mining, Metall., and Petroleum Engineers}{Deposit:: Vhay, J. S., 1952, Cobalt Resources, Chap. 6 Of Materials Survey - Cobalt: US Bureau of Mines}{Deposit:: Vhay, J. S, Et. Al., 1973, Cobalt Chapter In Brobst, Donald A., Pratt, Walden P., Ed., United States Mineral Resources/ USGS Prof. Paper 820}{Deposit:: Boyd, C. R., 1881, Copper-Ashe County, North Carolina/ Resources In Southwest Virginia}{Deposit:: Hunt, T. Sterry, 1875, The Ore Knob Copper Mine and Some Related Deposits/ Am. Inst. Mining Enginers Trans, 1873-4.}{Deposit:: Kerr, W. C. and Hanna, G. B., 1893, Ore Knob Copper Mine in Ore Knob North Carolina Chapter In Kerr, W. C., Ed., Geology Of North Carolina}{Deposit:: Olcott, E. E., 1875, The Ore Knob Copper Mine and Reduction Ashe County, North Carolina/ Am. Inst. Mining Engineers Transcript}{Deposit:: Staff, Bumines, 1943, Ore Knob Mine, Ashe County, NC, Bureau Of Mines War Minerals Report 61, 11 P.}{Deposit:: Staff, Bumines, 1944, Ore Knob Mine, Ashe County, N. C. (Sup To WMR 61)/ US Bureau of Mines War Minerals Report 1}{Deposit:: Ballard, T. J. and Clayton, A. B., 1948, Investigation of the Knob Copper Mine, Ashe County, North Carolina/ US Bureau Of Mines Report of Investigations 4341, 8 P.}{Deposit:: Knob Copper Mine, Ashe County, North Carolina/ U. S. Bureau Of Mines Report of Investigations 4341, 8 P.}{Deposit:: Tyler, Paul M., 1930, Cobalt: US Bureau Of Mines Information Circular 6331, 33 P.}{Deposit:: Kinkel, Arthur R., Jr., 1962, The Ore Knob Massive Sulfide Copper Deposit, North Carolina- An Example Of Recrystallized Ore/ Economic Geology V. 57}{Deposit:: Kinkel, A.R., 1967, The Ore Knob copper deposit, North Carolina, and other massive sulfide deposits of the Appalachians: US Geological Survey Professional Paper 558.}{Deposit:: Ross, C. S., 1935, Origin of the Copper Deposits of the Duck Type in the Southern Appalachian Region/ US Geological Survey Prof. Paper 179, 165 P.}{Deposit:: Gair, J.E., And Slack, J.F., 1979, Map Showing Lithostratigraphic And Structural Setting Of Stratabound (Massive) Sulfide Deposits In US Appalachians: US Geological Survey Open-File Report 79-1517.}{Deposit:: Pierce, W. G., 1944, Cobalt-Bearing Manganese Deposits Of Alabama, Georgia, and Tennessee/ USGS Bulletin 940-J}{Deposit:: Feiss, P.G., Maybin, A.H., III, Riggs, S.R., And Grosz, A.E., 1991, Mineral Resources of the Carolinas, in Horton, J.R., Jr., and Zullo, V.A., Eds., The Geology of the Carolinas: Knoxville, University of Tennessee Press}{Deposit:: Stuckey, Jasper L, 1968, Mineral Resources Of North Carolina, North Carolina- Its Geology And Mineral Resources, North Carolina Department Of Conservation and Development}
ReporterWoodruff, Laurel G., Klein, T.L., Mosier, Dan, Whitlow, S., Lyday, Travis Q., Sachiko, Tanikawa