Arizona · Cochise County
Past Producer

No. 4 Claim

Cochise County, Arizona, United States
ManganeseCopperSilver
⌖ Show on mapUSGS source ↗
Commodities
PrimaryManganese
SecondaryCopper
TertiarySilver
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnknown
Orebody formIRREGULAR
Ore controlOre Bodies Near Dikes And Sills, And Faulting And Assciated Brecciation
Materials
Ore mineralsBornite, Chalcocite, Chalcopyrite, Psilomelane
GangueCalcite, Pyrite
Geology
Host rockLimestone · Miss. Escabrosa Limestone
Associated rockGranite · Sacramento Hill Stock
StructurePre-Mineralization Faulting And Tilting Common, Main Fault Directions, N10w To N40e, S30w To N50w, Pre-Mineralization
AlterationGossan With Mn And Fe Oxides Induced By Hydrothermal Metamorphism
Economic & production
Development statusPast Producer
First production1918
Last production1921
Identification
Deposit ID10104071
MRDS IDM241097
RegionNA
Data scoreB
Coordinates31.41958, -109.91482
References
KEITH, S.B., 1973, ARIZONA BUREAU OF MINES BULLETIN 187, P. 89.FARNHAM, 1961, USBM IC 7990, P. 11KEITH, 1973, ARIZ. BUR. OF MINES BULL. 187.