Commodities
PrimaryCopper
SecondarySilver, Gold, Tungsten
TertiaryMolybdenum, Wollastonite
Commodity typeB
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formIRREGULAR LENTICULAR ZONES
Ore controlDark, Less Crystallized Limestone Near Fractures And Thrust, Pyriti Zed Limestone
Materials
Ore mineralsChalcocite, Chalcopyrite, Malachite, Molybdenite, Powellite, Scheelite, Wollastonite
Geology
Host rockShale,Limestone · Horquilla Limestone;Abrigo Formation;Bolsa Quartzite
Associated rockQuartz Latite
StructureHomocline, Thrusts And Normal Faulting, Fracture Zones, Crushed Sedimentary Rocks
Tectonic settingBasin And Range
AlterationSilicification & Pyritization Of Limestone, Narrow Oxidized Streak S, Contact Metamorphic Minerals
Economic & production
Development statusPast Producer
First production1900
Discovery year1900
Identification
Deposit ID10039406
MRDS IDM050038
Alternate namesBrunswick, Owasco, Little Dave, Black Horse
RegionNA
Data scoreB
Coordinates31.86069, -110.7679
References
SCHRADER, 1915, USGS BULL 582CREASY, 1955 USGS BULL 1027-FABM, 1971, FIELD NOTES, V.1, NO. 2DREWES, 1971, USGS MAP I-613KEITH, S.B., 1974, INDEX OF MINING PROPERTIES IN PIMA COUNTY, ARIZONA: ARIZONA BUREAU OF MINES BULLETIN 189, P. 130.PEIRCE, H.W., 1990, ARIZONA GEOLOGICAL SURVEY INDUSTRIAL MINERAL CARD FILES.CIMRIKEITH, 1974; CREASY, 1955