Montana · Granite County
Past Producer
Gem Mine
Granite County, Montana, United States
Silver
Manganese
Gold
Copper
Lead
Phosphorus-Phosphates
Arsenic
Antimony
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USGS source ↗
Commodities
Primary
Silver, Manganese
Secondary
Gold, Copper, Lead
Tertiary
Phosphorus-Phosphates, Arsenic, Antimony
Commodity type
B
Deposit
Deposit type
Replacement Vein
Deposit size
S
Orebody form
TABULAR
Ore control
Near Granite Contact
Materials
Ore minerals
Galena, Psilomelane, Pyrolusite, Sphalerite, Tennantite
Gangue
Calcite, Quartz, Rhodochrosite
Geology
Host rock
Quartzite,Marble,Limestone · Red Lion Formation;Hasmark Formation
Associated rock
Diorite · Philipsburg Batholith
Structure
Philipsburg Batholith
Alteration
Oxidized
Economic & production
Development status
Past Producer
Identification
Deposit ID
10014287
MRDS ID
D010994
Region
NA
Data score
B
Coordinates
46.32906, -113.26759
References
USGS PP 78, P. 210.USGS BULL 1237.USGS BULL 922-G, P. 197USGS BULL 725, P. 163.