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:
Rainy Creek Mine (W. R. Grace Mine), Libby, Libby Mining District (Snowshoe Mining District), Lincoln Co., Montana, USA

Oldest recorded age at locality: 94
Youngest recorded age at locality: 94

mindat Locality ID: 29899
mindat URL: http://www.mindat.org/loc-29899.html

Tectonic Settings:

Total number of sublocalities beneath "Rainy Creek Mine (W. R. Grace Mine), Libby, Libby Mining District (Snowshoe Mining District), Lincoln Co., Montana, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0
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 Ba C Ca Cu F Fe H K Mg Na O P Pb S Si Sr Ti Zn 

Elements from minerals reported directly at this locality: Al Ba C Ca Cu F Fe H K Mg Na O P Pb S Si Sr Ti Zn 

Structural Groups for minerals in this locality: 
AllophaneAmphiboleApatiteAragoniteBaryteCalciteChalcopyriteClayCorrensiteFeldspar
FluoriteNickelineNonePyritePyroxeneQuartzRocksaltRutileSerpentineSmectite-vermiculite
SphaleriteSpinelTalcTitanite

33 IMA Minerals at location:
Aegirine  (*)Aegirine-augite  (*)Albite  (*)Augite  (*)Baryte  (*)
Calcite  (*)Celestine  (*)Chalcopyrite  (*)Chrysocolla  (*)Chrysotile  (*)
Diopside  (*)Dolomite  (*)Fluorapatite  (*)Fluorite  (*)Galena  (*)
Hydrobiotite  (*)Magnesio-arfvedsonite  (*)Magnesio-riebeckite  (*)Magnetite  (*)Microcline  (*)
Orthoclase  (*)Pyrite  (*)Pyrrhotite  (*)Quartz  (*)Richterite  (*)
Rutile  (*)Sphalerite  (*)Strontianite  (*)Talc  (*)Titanite  (*)
Tremolite  (*)Vermiculite  (*)Winchite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Aegirine  (*)PyroxeneNaFe3+Si2O6949401022
Aegirine-augite  (*)Pyroxene(Ca,Na)(Fe3+,Mg,Fe2+)Si2O694940286
Albite  (*)FeldsparNa(AlSi3O8)949408803
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O6949402060
Baryte  (*)BaryteBa(SO4)9494011547
Calcite  (*)CalciteCa(CO3)9494027770
Celestine  (*)BaryteSr(SO4)949401252
Chalcopyrite  (*)ChalcopyriteCuFeS29494027198
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O949403531
Chrysotile  (*)Serpentine ClayMg3Si2O5(OH)494940951
Diopside  (*)PyroxeneCaMgSi2O6949404135
Dolomite  (*)NoneCaMg(CO3)2949409895
Fluorapatite  (*)ApatiteCa5(PO4)3F949402740
Fluorite  (*)FluoriteCaF2949409617
Galena  (*)RocksaltPbS9494024243
Hydrobiotite  (*)Corrensite ClayK(Mg,Fe2+)6(Si,Al)8O20(OH)4·nH2O9494049
Magnesio-arfvedsonite  (*)AmphiboleNaNa2(Mg4Fe3+)Si8O22(OH)29494079
Magnesio-riebeckite  (*)Amphibole   Na2(Mg3Fe3+2)Si8O22(OH)29494093
Magnetite  (*)SpinelFe2+Fe3+2O49494014899
Microcline  (*)FeldsparK(AlSi3O8)949404924
Orthoclase  (*)FeldsparK(AlSi3O8)949402349
Pyrite  (*)PyriteFeS29494039462
Pyrrhotite  (*)NickelineFe7S8949409056
Quartz  (*)QuartzSiO29494061156
Richterite  (*)AmphiboleNa(NaCa)Mg5Si8O22(OH)294940148
Rutile  (*)RutileTiO2949405614
Sphalerite  (*)SphaleriteZnS9494021482
Strontianite  (*)AragoniteSr(CO3)94940589
Talc  (*)Clay TalcMg3Si4O10(OH)2949403337
Titanite  (*)TitaniteCaTi(SiO4)O949404899
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2949402562
Vermiculite  (*)Clay Smectite-vermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4·8H2O94940652
Winchite  (*)Amphibole   (NaCa)(Mg4Al)Si8O22(OH)29494051


Locality Notes from all Ages at Locality:
Age IDLocality Notes
Jen_0000702ASSOCIATED SILICATE ROCKS: Pyroxenite, biotitite, nepheline syenite, syenite, quartz syenite.


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
Jen_0000702949494Rb-Sr biotite     29899Rainy Creek Mine (W. R. Grace Mine), Libby, Libby Mining District (Snowshoe Mining District), Lincoln Co., Montana, USARainy CreekWoolley and Kjarsgaard (2008)10.4095/225115GSCOF5796 

All locality data graciously provided by mindat.org

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