Montana · Granite County
Past Producer
Gem Mine
Granite County, Montana, United States
Silver
Manganese
Copper
Lead
Zinc
Arsenic
Antimony
⌖ Show on map
USGS source ↗
Commodities
Primary
Silver, Manganese
Secondary
Copper, Lead, Zinc
Tertiary
Arsenic, Antimony
Commodity type
M
Deposit
Deposit type
Polymetallic Replacement
Deposit size
S
Orebody form
TABULAR
Ore control
Near Granite Contact
Materials
Ore minerals
Galena, Proustite, Psilomelane, Pyrolusite, Sphalerite, Tetrahedrite
Gangue
Calcite, Dolomite, Quartz, Rhodochrosite
Geology
Host rock
Quartzite,Marble,Limestone · Red Lion Formation;Hasmark Formation
Associated rock
Diorite · Philipsburg Batholith
Structure
Philipsburg Batholith, Philipsburg Anticline, Philipsburg Overthrust
Alteration
Oxidized
Economic & production
Development status
Past Producer
Identification
Deposit ID
10019605
MRDS ID
DC10927
Alternate names
Part of Trout Group
Region
NA
Data score
B
Coordinates
46.32906, -113.27453
References
USGS PP 78, P. 210.USGS BULL 1237, P. 31-57, PLATES.USGS BULL 922-G P.USGS PP 78.