Monarch Mine

Powell County, Montana, United States

SilverGoldCopperLeadZincArsenicAntimony

⌖ Show on map USGS source ↗

Commodities

PrimarySilver, Gold, Copper

SecondaryLead, Zinc

TertiaryArsenic, Antimony

Commodity typeM

Deposit

Deposit sizeS

WorkingsUnderground

Ore controlIntrusive Contact Of Quartz Monzonite And Andesite

Materials

Ore mineralsChalcopyrite, Covellite, Galena, Gold, Sphalerite, Tetrahedrite

GangueLimonite, Pyrite, Quartz, Specularite

Geology

Host rockQuartz Monzonite,Andesite

Associated rockQuartz Monzonite,Andesite · Butte Quartz Monzonite (Boulder Bathoth);Elkhorn Mountain Volcanics

StructureBoulder Batholith

AlterationOxidized, Argillization, And By Addition Of Disseminated & Sulfide Minerals.

Economic & production

Development statusPast Producer

Identification

Deposit ID10015868

MRDS IDDB02138

RegionNA

Data scoreB

Coordinates46.40684, -112.40367

References

MBMG BULL 98, P. 13, 50.USGS BULL 1151, PL. 1.USGS BULL 842, P. 266-67.USGS BULL 527, P. 79.MBMG BULL 109, P. 17.MBMG BULL 98, P. 50; USGS BULL 842, P. 266-67.