Montana · Jefferson County
Past Producer
Mono Group
Jefferson County, Montana, United States
Lead
Silver
Copper
Gold
Zinc
Antimony
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USGS source ↗
Commodities
Primary
Lead, Silver
Secondary
Copper, Gold, Zinc
Tertiary
Antimony
Commodity type
M
Deposit
Deposit size
S
Ore control
Comet-Gray Eagle Shear Zone
Materials
Ore minerals
Chalcopyrite, Galena, Gold, Sphalerite, Tetrahedrite
Gangue
Pyrite, Quartz, Siderite
Geology
Host rock
Quartz Monzonite
Associated rock
Quartz Monzonite · Butte Quartz Monzonite (Boulder Batholith)
Structure
Boulder Batholith, Comet-Gray Eagle Shear Zone
Alteration
Sericitization, Some Oxididation
Economic & production
Development status
Past Producer
Identification
Deposit ID
10101942
MRDS ID
DB02212
Alternate names
Mono Mine, E Mono Mine
Region
NA
Data score
C
Coordinates
46.29934, -112.10449
References
USGS PP 428, P. 88-89MBMG BULL 16, P. 98.