Montana · Granite County
Occurrence
Royal Metals Tunnel
Granite County, Montana, United States
Silver
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USGS source ↗
Commodities
Primary
Silver
Commodity type
M
Deposit
Deposit size
N
Workings
Underground
Materials
Ore minerals
Copper, Galena
Gangue
Pyrite, Quartz
Geology
Host rock
Diorite
Associated rock
Diorite · Philipsburg Batholith
Structure
Philipsburg Batholith, Philipsburg Anticline, Philipsburg Overthrust
Economic & production
Development status
Occurrence
Identification
Deposit ID
10019408
MRDS ID
DC09956
Region
NA
Data score
C
Coordinates
46.32461, -113.24759
References
USGS PP 78, P. 208