Montana · Jefferson County
Past Producer

Ajax Mine

Jefferson County, Montana, United States
LeadZincSilverGoldCopperArsenicAntimony
⌖ Show on mapUSGS source ↗
Commodities
PrimaryLead, Zinc
SecondarySilver, Gold, Copper
TertiaryArsenic, Antimony
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Materials
Ore mineralsCovellite, Galena, Sphalerite, Tetrahedrite
GangueAnglesite, Pyrite, Quartz
Geology
Host rockQuartz Monzonite
Associated rockQuartz Monzonite · Butte Quartz Monzonite (Boulder Batholith)
StructureBoulder Batholith
Economic & production
Development statusPast Producer
Identification
Deposit ID10011925
MRDS IDD007119
Alternate namesBig Four
RegionNA
Data scoreB
Coordinates46.10462, -112.18421
References
MBMG BULL 30, P. 26.MBMG BULL 16, P. 38, 99.MBMG BULL 16, P. 38.