Montana · Granite County
Past Producer
Shamrock Mine
Granite County, Montana, United States
Gold
Lead
Copper
Antimony
Barium-Barite
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USGS source ↗
Commodities
Primary
Gold
Secondary
Lead, Copper
Tertiary
Antimony, Barium-Barite
Commodity type
B
Deposit
Deposit size
S
Workings
Surface/Underground
Materials
Ore minerals
Chalcopyrite, Galena, Gold, Tetrahedrite
Gangue
Barite, Pyrite, Quartz
Geology
Host rock
Diorite
Associated rock
Diorite · Garnet Stock
Structure
Bearmouth Overthrust, Deep Creek Anticline, Garnet Stock
Alteration
Oxidation
Economic & production
Development status
Past Producer
Production years
PRE-1916.
Discovery year
1867
Identification
Deposit ID
10019707
MRDS ID
DC11190
Region
NA
Data score
B
Coordinates
46.82711, -113.34315
References
USGS BULL 660, P171-78, 186