Montana · Jefferson County
Producer
Jib Group
Jefferson County, Montana, United States
Gold
Lead
Copper
Silver
Zinc
Tellurium
Antimony
⌖ Show on map
USGS source ↗
Commodities
Primary
Gold, Lead, Copper, Silver
Secondary
Zinc
Tertiary
Tellurium, Antimony
Commodity type
M
Deposit
Deposit size
S
Workings
Underground
Orebody form
SHOOTS
Ore control
Ore Confined To Marginal Fissure Zone Of Batholith; Vein Follows Fault
Materials
Ore minerals
Chalcopyrite, Galena, Gold, Sphalerite, Tetrahedrite
Gangue
Ankerite, Pyrite, Quartz, Rhodochrosite
Geology
Host rock
Quartz Monzonite
Associated rock
Quartz Monzonite,Quartz Latite · Boulder Batholith, Butte Quartz Monzonite (Boulder Batholith);Quartz Latite
Structure
Boulder Batholith, Vein Cut By Dike And By N 25 W-Trending Fault With About 250 M Left Lateral Separation
Economic & production
Development status
Producer
First production
1890
Discovery year
1870
Identification
Deposit ID
10071317
MRDS ID
W014645
Alternate names
Hope-Katie, Katie Extension
Region
NA
Data score
B
Coordinates
46.27073, -112.26921
References
MBMG BULL 16, P. 31-2.USGS BULL 842, P. 290.USGS BULL 1151, P. 105.MBMG BULL 100, P. 10.MBMG BULL 16, P. 32.