Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org



The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
Lemhi Pass District, Lemhi Co., Idaho, USA

Oldest recorded age at locality: 99
Youngest recorded age at locality: 90

mindat Locality ID: 39593
mindat URL: http://www.mindat.org/loc-39593.html

Tectonic Settings:

Total number of sublocalities beneath "Lemhi Pass District, Lemhi Co., Idaho, USA": 45
Total number of bottom-level sublocalities: 45

Number of Child Localities: 45
Child Localities:
Atomic Blast Nos. 7 And 8 Prospect
Big Dean No. 1 Prospect
Big Lost Nos. 1 And 2 Prospect
Big Thor Nos. 1 And 2 Vein Prospect
Black Bear Prospect
Black Widow Nos. 15 And 16 Prospect
Blue Lupine Vein
Cago No. 12 Claim
Contact Prospect
Copper Deposit No. 44
Deer Fraction 1a Prospect
Deer No. 22 Thorium Prospect
Deer No. 23 Thorium Prospect
Deer No. 24 Thorium Prospect
Gem
In Trust Prospect
Nellie B
No. 10 Thorium Deposit
No. 100 Thorium Deposit
No. 101 Thorium Deposit
No. 103 Thorium Deposit
No. 11 Thorium Deposit
No. 12 Thorium Deposit
No. 13 Thorium Deposit
No. 14 Thorium Deposit
No. 16 Thorium Deposit
No. 29 Thorium Deposit
No. 31 Thorium Deposit
No. 38 Thorium Deposit
No. 4 Thorium Prospect
No. 44 Thorium Deposit
No. 5 Thorium Prospect
No. 53 Thorium Deposit
No. 6 Thorium Deposit
No. 99 Thorium Deposit
North Fork Yearian Creek Thorite Claim
Nuclear Fuels And Rare Metals Corporation Prospect (Lake Vein; Contact Vein; Deer Vein; Silver Queen 52-B; Silver Queen 38-A; Wonder Lode; Cago Vein; Black Bull; Wonder Vein)
Pines Nos. 1 And 2
Rufus Prospect
Summerwell Adit Prospect
Thorite No. 3 Deposit
Thorium Deposit No. 103
Thorium Deposit No. 159
Thorium Deposit No. 162
Thorium Deposits Nos. 99-101

Latitude: 44°57'25"N
Longitude: 113°30'27"W
Decimal Degree (lat, lon): 44.956944444444,-113.5075

AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al Au Ba C Ca Ce Cl Cu F Fe H K Mg Mn Mo Nb O P Pb S Si Ta Th Ti U Y Zn 

Elements from minerals reported directly at this locality: Au C Ca Ce Cu F Fe H K Mg Mo O P S Si Th Ti Y Zn 

Structural Groups for minerals in this locality: 
AluniteApatiteBaryteBrookiteCalciteChalcopyriteClayColumbiteCopperCorundum
CovelliteDiasporeFeldsparFluoriteLepidocrociteMalachiteMicaMolybdeniteNickelineNone
Not in a structural groupPyritePyroxeneQuartzRhabdophaneRocksaltRutileScheeliteSphaleriteSpinel
StauroliteZircon

40 IMA Minerals at location:
Anatase  (*)Augite  (*)Azurite  (*)Baryte  (*)Bornite  (*)
Brockite  (*)Brookite  (*)Calcite  (*)Chalcocite  (*)Chalcopyrite  (*)
Copper  (*)Covellite  (*)Cuprite  (*)Diopside  (*)Dolomite  (*)
Euxenite-(Y)  (*)Fluorite  (*)Galena  (*)Goethite  (*)Gold  (*)
Hematite  (*)Jarosite  (*)Lepidocrocite  (*)Magnetite  (*)Malachite  (*)
Microcline  (*)Molybdenite  (*)Muscovite  (*)Pyrite  (*)Pyrolusite  (*)
Pyromorphite  (*)Pyrrhotite  (*)Quartz  (*)Rutile  (*)Sphalerite  (*)
Staurolite  (*)Synchysite-(Y)  (*)Thorite  (*)Wulfenite  (*)Xenotime-(Y)  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Anatase  (*)Not in a structural groupTiO2999002162
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O6999002060
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)2999005509
Baryte  (*)BaryteBa(SO4)99904209809,209829,209833,20984211547
Bornite  (*)NoneCu5FeS4999005516
Brockite  (*)Rhabdophane(Ca,Th,Ce)(PO4)·H2O9990048
Brookite  (*)BrookiteTiO299900700
Calcite  (*)CalciteCa(CO3)99902209812,20983327770
Chalcocite  (*)NoneCu2S999005707
Chalcopyrite  (*)ChalcopyriteCuFeS29990120980927198
Copper  (*)CopperCu99902209832,2098403846
Covellite  (*)CovelliteCuS999004165
Cuprite  (*)Not in a structural groupCu2O999002970
Diopside  (*)PyroxeneCaMgSi2O6999004135
Dolomite  (*)NoneCaMg(CO3)2999009895
Euxenite-(Y)  (*)ColumbiteY(NbTi)O699901209806414
Fluorite  (*)FluoriteCaF2999009617
Galena  (*)RocksaltPbS99903209809,209816,20983124243
Goethite  (*)DiasporeFeO(OH)99908209805,209809,209810,209812,209820,209829,209831,2098427437
Gold  (*)CopperAu9990030554
Hematite  (*)CorundumFe2O399906209810,209812,209820,209831,209833,20984214640
Jarosite  (*)AluniteKFe3+3(SO4)2(OH)6999002228
Lepidocrocite  (*)LepidocrociteFe3+O(OH)99900581
Magnetite  (*)SpinelFe2+Fe3+2O499908209805,209809,209810,209812,209820,209831,209833,20984214899
Malachite  (*)MalachiteCu2(CO3)(OH)29990012537
Microcline  (*)FeldsparK(AlSi3O8)99906209805,209806,209809,209810,209820,2098424924
Molybdenite  (*)MolybdeniteMoS2999005800
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)299902209805,20982917380
Pyrite  (*)PyriteFeS299905209805,209809,209812,209833,20984239462
Pyrolusite  (*)RutileMnO2999012098063106
Pyromorphite  (*)ApatitePb5(PO4)3Cl99902209806,2098291725
Pyrrhotite  (*)NickelineFe7S8999009056
Quartz  (*)QuartzSiO2999010209805,209806,209809,209810,209812,209820,209829,209831,209833,20984261156
Rutile  (*)RutileTiO299909209805,209806,209809,209810,209812,209820,209829,209833,2098425614
Sphalerite  (*)SphaleriteZnS9990021482
Staurolite  (*)StauroliteFe2+2Al9Si4O23(OH)99901209829978
Synchysite-(Y)  (*)NoneCaY(CO3)2F9990055
Thorite  (*)ZirconTh(SiO4)999011209805,209806,209809,209810,209812,209820,209829,209831,209833,209835,2098421006
Wulfenite  (*)ScheelitePbMoO4999012098061655
Xenotime-(Y)  (*)ZirconY(PO4)99901209809939



1 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
ree-00692999090-99 Ma (Pb-alpha, mon) -- PrecambrianPb-alpha monazite     39593Lemhi Pass District, Lemhi Co., Idaho, USALemhi PassOrris and Grauch (2002) USGSOFR02_189 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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