Description
R.R. Richardson
Commodities
PrimaryCopper
SecondaryLead, Silver, Gold
TertiaryAluminum
Commodity typeM
Deposit
Deposit sizeS
WorkingsSurface/Underground
Orebody formLENSES
Ore controlN-S Trending, Roughly Parallel Strong Quartz Fissure Veins In Granite Porphyry; Large, Steeply Dipping Lensing Ore Body Of Disseminated Cupriferous Pyrite In Nnw-Trending Fault Zone; Sparse Copper Mineralization In Quartz-Sericite Veins Around Ore Body
Materials
Ore mineralsAlunite, Bornite, Chalcocite, Chalcopyrite, Covellite, Malachite
Geology
Host rockGranite · Granite Of Comoro Canyon
Associated rockSandstone,Rhyolite · Mount Wrightson Formation
Structure6 Major N-S Trending, Fractures Appear To Be Regional Control Of Mineralization;3 Major Fracture Systems Trending N-S, N75e, And N30e, Respectively, Each Fault Within System Branches, Causing Small Brecciated Zones That Formed Small Pockets Of Ore Away From Main Orebody
Tectonic settingNnw-Trending Patagonia Batholith
AlterationMetasomatic Replacement Of Feldspar In Granite By Ore Minerals; Alteration Of Remaining Feldspar Has Resulted In High Alumina Concentration
Economic & production
Development statusProducer
First production1908
Last production1956
Discovery year1897
Identification
Deposit ID10046338
MRDS IDM241337
Alternate namesColossus, Richardson Property, Evening Star Prospect
RegionNA
Data scoreB
Coordinates31.48403, -110.76457
References
KEITH, S.B., 1969, "ALUNITE", IN ABM BULLETIN 180, USGS BULLETIN 871, P. 302-303.HANDVERGER, PAUL A., 1963, GEOLOGY OF THE THREE R MINE, PALMETTO MINING DISTRICT, SANTA CRUZ COUNTY, ARIZONA: M.S. THESIS, UNIVERSITY OF ARIZONA.PROBERT, F.H., 1914, THE THREE R MINE, PATAGONIA DISTRICT, ARIZONA: MINING AND SCIENTIFIC PRESS, VOL.109, P. 174-176.USBM FILES, THREE R MINE GROUP.ABGMT CLIPPINGS FILE, THREE R MINE.ADMR FILE DATA, THREE R MINE.USGS BULL 582, P. 282-287.ARIZ BUR MINES BULL 191, P. 74.PEIRCE, H.W., 1990, ARIZONA GEOLOGICAL SURVEY INDUSTRIAL MINERALS CARD FILE.USGS MAP I-762.SCHRADER, F.C., 1914, ALUNITE IN GRANITE PORPHYRY NEAR PATAGONIA, ARIZONA: USGS BULLETIN 540, P. 347-350.PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.TENNEY, JAMES B., 1927-29, HISTORY OF MINING IN ARIZONA: ARIZONA BUREAU OF MINES, P. 311-312.BLM DISTRICT MINING SHEET 693.CIMRI