Montana · Jefferson County
Past Producer
Obelisk Mine
Jefferson County, Montana, United States
Silver
Lead
Zinc
Copper
Gold
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USGS source ↗
Commodities
Primary
Silver
Secondary
Lead, Zinc, Copper, Gold
Commodity type
M
Deposit
Deposit size
S
Workings
Underground
Orebody form
BRECCIA PIPE
Materials
Ore minerals
Chalcopyrite, Galena, Gold, Polybasite, Silver, Sphalerite
Gangue
Calcite, Pyrite, Quartz, Rhodochrosite, Siderite
Geology
Host rock
Quartz Monzonite
Associated rock
Quartz Monzonite,Granite · Boulder Batholith;Butte Quartz Monzonite
Structure
Boulder Batholith
Economic & production
Development status
Past Producer
Identification
Deposit ID
10019673
MRDS ID
DC11104
Region
NA
Data score
B
Coordinates
46.27129, -112.22227
References
MBMG BULL 30, P. 23.MBMG BULL 16, P. 35.USGS PP 428 P. 50, 97, PL. 1.MBMG BULL 33, P. 15.USGS-USBM MINERAL YEARBOOK 1960.MBMG BULL 16, P. 35. USGS-USBM MINERAL YEARBOOK 1960