Description
Mike & Pat O'Brien
Commodities
PrimaryLead, Zinc, Copper
SecondarySilver, Semiprecious Gemstone, Gold
TertiaryMolybdenum, Antimony, Vanadium, Iron
Commodity typeB
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formTABULAR
Ore controlFractures & Pre Ore Channelways, Favorable Rock Type, Silicate Altered Rhyolite
Materials
Ore mineralsAnglesite, Aurichalcite, Brochantite, Chalcopyrite, Chrysocolla, Covellite, Galena, Hemimorphite, Malachite, Molybdenite, Pyrite, Rosasite, Sphalerite, Wulfenite
GangueCalcite, Dolomite, Goethite, Gypsum, Hematite, Jarosite, Limonite, Manganite, Psilomelane, Quartz, Wad
Geology
Host rockLimestone,Rhyolite · Naco Limestone;
Associated rockDiorite,Rhyolite
StructureHigh Angle Faults Trending N60-70e, N-S Faults
AlterationGossan Above Orebody, Deep Oxidation,
Economic & production
Development statusProducer
First production1920
Last production1962
Discovery year1879
Identification
Deposit ID10026845
MRDS IDM000500
Alternate names79 Mine
RegionNA
Data scoreB
Coordinates33.06509, -110.81458
References
WILSON, E.D., 1951, DRAGOON MOUNTAINS, IN ARIZONA LEAD AND ZINC DEPOSITS, PART II: ARIZONA BUREAU OF MINES BULL 158, P. 10-29.ELSING, M.J., AND HEINEMAN, R.E.S., 1936, ARIZONA METAL PRODUCTION: ARIZONA BUREAU OF MINES BULL 140, 112 P.KIERSCH, 1949, ECON GEOLOGY, V. 44, NO. 1, P. 24.KEITH, 1972, MINERAL. RECORD, V. 3, NO. 6, P. 247-264.ABGMT-USBM FILE DATA.ADMR FILE DATA.ROSS, C.P., 1925, USGS BULL. 771, P. 68.NIEMUTH, N.J., 1987, ARIZONA MINERAL DEVELOPMENT 1984-1986: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES DIRECTORY 29, 46 P.BLAIR, GERRY, 1992, THE ROCKHOUND'S GUIDE TO ARIZONA: HELENA, MONTANA, FALCON PRESS, 165 P.SAWYER, M.B., GURMENDI, A.C., DALEY, M.R., AND HOWELL, S.B., 1992, PRINCIPAL DEPOSITS OF STRATEGIC AND CRITICAL MINERALS IN ARIZONA: U.S. BUREAU OF MINES SPECIAL PUBLICATION, 334 P.ARIZONA BUREAU OF GEOLOGY FILE DATA; EASTLICK, 1968