Idaho · Lemhi County
Prospect

Last Chance Prospect

Lemhi County, Idaho, United States
CopperThoriumREETitanium
⌖ Show on mapUSGS source ↗
Commodities
PrimaryCopper, Thorium
SecondaryREE
TertiaryTitanium
Commodity typeM
Deposit
Deposit sizeN
Orebody formTHIN SEAMS, PODS, BUNCHLIKE CLUSTERS, STREAKS
Ore controlShear Zone
Materials
Ore mineralsAllanite, Chalcopyrite, Ilmenite, Monazite, Rutile, Xenotime
GangueAlbite, Apatite, Biotite, Calcite, Labradorite, Magnetite, Quartz, Tourmaline, Zircon
Geology
Host rockGneiss,Amphibolite · Belt Supergroup
Associated rockAmphibolite · Amphibolized Gabbroic Rock
StructureWeak Foliation
AlterationGouge, Epidote, Clinozoisite, Chlorite, Sericite
Economic & production
Development statusProspect
Identification
Deposit ID10093618
MRDS IDW015403
RegionNA
Data scoreB
Coordinates45.3961, -114.0733
References
Anderson, A. L., 1958, Uranium, Thorium, Columbium, And Rare Earth Deposits In The Salmon Region, Lemhi County, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 115, 81 PUSBM WFOC Wilderness Studies