Arizona · Pinal County
Producer

Greenback Mine

Pinal County, Arizona, United States
GoldSilverCopper
⌖ Show on mapUSGS source ↗
Commodities
PrimaryGold
SecondarySilver, Copper
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formLENSES
Ore controlE-W Trending Faults Zones
Materials
Ore mineralsChrysocolla, Gold, Malachite
GangueQuartz
Geology
Host rockDacite · Pinal Schist
Associated rockDacite · Dacite
StructureNw And Ne Trending Fault Zones, E-W Trending Fault Zones, E-W Trending Fault Zone Through Mine. 2 Parallel Nw Trending Faults 1/3 Mile Sw Of Mine
Economic & production
Development statusProducer
First production1939
Last production1940
Discovery year1895
Identification
Deposit ID10109774
MRDS IDM241171
RegionNA
Data scoreB
Coordinates32.51788, -112.16322
References
ABGMT CLIPPINGS FILESABGMT-USBM FILE DATAADMR FILE DATAUSGS MF-931TENNEY, JAMES, HISTORY OF MINING IN AZ 1927-29, P. 340-342TENNEY, J.B., ECONOMIC GEOLOGICAL RECONNAISSANCE OF CASA GRANDE MINING DISTRICT, AZ BUREAU OF MINES, 1934