Commodities
PrimaryGold, Silver
Commodity typeM
Deposit
Deposit sizeS
WorkingsSurface/Underground
Orebody formBLANKET
Ore controlUncertain - Fracture Control Suggested - No Evidence Of Brecciation Or Pre-Mineralization Faulting.
Geology
Host rockQuartz Monzonite · Cobre Ridge Tuff;Sidewinder Quartz Monzonite
StructureBlock Faulting
Tectonic settingBasin And Range
AlterationStrongly Oxidized- Only Some Pyrite Visible Qtz-Ser-Pyr
Economic & production
Development statusPast Producer
Production yearsD1-TOTAL ESTIMATE
First production1884
Last production1940
Discovery year1850
Identification
Deposit ID10103747
MRDS IDM050246
Alternate namesSargent, Esperanza, Ophir, Arizona Ophir, Blaine Ledge
RegionNA
Data scoreB
Coordinates31.43542, -111.2568
References
KNIGHT, L.H., JR., 1970, ORO BLANCO DISTRICT: UNIV. ARIZ. PH.D. THESIS.WILSON ET AL, 1934, ARIZONA LODE GOLD MINES: ABM BULL. 137.YEEND, WARREN, 1973.ABGMT-USBM FILE DATA.ABM BULL 191, P. 64.CIMRIKNIGHT, 1970