Montana · Jefferson County
Occurrence
Polaris Mine
Jefferson County, Montana, United States
Lead
Silver
Zinc
Copper
Molybdenum
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USGS source ↗
Commodities
Primary
Lead, Silver
Secondary
Zinc, Copper
Tertiary
Molybdenum
Commodity type
M
Deposit
Deposit size
N
Materials
Ore minerals
Chalcopyrite, Galena, Molybdenite, Sphalerite
Gangue
Pyrite, Quartz
Geology
Host rock
Quartz Monzonite
Associated rock
Quartz Monzonite · Butte Quartz Monzonite (Boulder Batholith)
Structure
Boulder Batholith
Economic & production
Development status
Occurrence
Identification
Deposit ID
10015930
MRDS ID
DB02225
Region
NA
Data score
C
Coordinates
46.36518, -112.0606
References
USGS PP 428, P. 81, PL. 1