Montana · Silver Bow County
Past Producer

Magna Charta Mine

Silver Bow County, Montana, United States
SilverGoldCopperManganeseLeadZincBeryllium
⌖ Show on mapUSGS source ↗
Commodities
PrimarySilver, Gold
SecondaryCopper, Manganese, Lead, Zinc
TertiaryBeryllium
Commodity typeM
Deposit
Deposit sizeY
Materials
Ore mineralsArgentite, Chalcopyrite, Galena, Gold, Rhodochrosite, Rhodonite, Silver, Sphalerite
GangueHelvite, Pyrite, Quartz
Geology
Host rockQuartz Monzonite
Associated rockQuartz Monzonite · Butte Quartz Monzonite (Boulder Batholith)
StructureBoulder Batholith
Economic & production
Development statusPast Producer
First production1957
Identification
Deposit ID10019580
MRDS IDDC10854
RegionNA
Data scoreB
Coordinates46.01073, -112.53283
References
USGS PP 74, P. 246, PL. X.MBMG BULL 10, P. 63.USGS-USBM MINERAL YEARBOOKS, 1925, 1933-34, 1937-39, 1951, 1952, 1955USBM R1 7148, P. 149.AIMMET V16, P.USGS-USBM MINERAL YEARBOOKS; MBMG BULL 10;