Montana · Jefferson County
Past Producer
Aurora Mine
Jefferson County, Montana, United States
Silver
Lead
Zinc
Gold
Copper
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USGS source ↗
Commodities
Primary
Silver, Lead, Zinc
Secondary
Gold, Copper
Commodity type
M
Deposit
Deposit size
S
Workings
Underground
Ore control
Fault Zone, Where Vein Cuts Metamorphic Elkhorn Volcanics.
Materials
Ore minerals
Chalcopyrite, Galena, Gold, Sphalerite
Gangue
Boulangerite, Proustite, Pyrite, Quartz
Geology
Host rock
Quartz Monzonite,Latite
Associated rock
Quartz Monzonite,Latite · Butte Quartz Monzonite (Boulder Batholith);Elkhorn Mountain Volcanics
Structure
Fault Zone Trending N 80 W, And Dips 70 N
Economic & production
Development status
Past Producer
Last production
1955
Identification
Deposit ID
10015876
MRDS ID
DB02149
Region
NA
Data score
B
Coordinates
46.30184, -112.30977
References
MBMG BULL 30, P. 22.MBMG BULL 10, P. 24.MBMG BULL 16, P. 23-4.USGS BULL 1151, P. 98