Montana · Lewis and Clark County
Past Producer

Magpie Group

Lewis and Clark County, Montana, United States
SilverLeadGoldCopper
⌖ Show on mapUSGS source ↗
Commodities
PrimarySilver, Lead
SecondaryGold, Copper
Commodity typeM
Deposit
Deposit sizeS
WorkingsSurface/Underground
Ore controlNear Contact Between Quartz Monzonite And Metamorphic Rocks
Materials
Ore mineralsChalcopyrite, Chrysocolla, Galena, Gold, Lead
GangueHornblende, Quartz
Geology
Host rockQuartz Monzonite · Butte Quartz Monzonite
Associated rockQuartz Monzonite · Scratchgravel Quartz Monzonite Stock
StructureBoulder Batholith, Fault Trends North, Dips 35e Scratchgravel Quartz Monzonite Stock
Economic & production
Development statusPast Producer
Identification
Deposit ID10015872
MRDS IDDB02143
RegionNA
Data scoreB
Coordinates46.64796, -112.06755
References
USGS BULL 842, P. 43-4, PL. 3