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

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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 Mining District, Lincoln Co., Montana, USA


mindat Locality ID: 186144
mindat URL: http://www.mindat.org/loc-186144.html

Tectonic Settings:

Total number of sublocalities beneath "Rainy Creek Mining District, Lincoln Co., Montana, USA": 15
Total number of bottom-level sublocalities: 15

Number of Child Localities: 15
Child Localities:
Ada Prospect
Hand Mine
Iron-Phosphate Occurrence (MRDS - 10232661)
Joseph Prospect
Kentucky Vermillion
Last Chance Group (Poston Property)
Lucky Mac Group
Napoleon Prospect
Raven Prospect
Universal Zonolite Corporation Property
Unnamed Asbestos Occurrence (MRDS - 10173227)
Unnamed Chlorite & Sericite Occurrence (MRDS - 10246151)
Unnamed Copper; Lead; & Silver Occurrence (MRDS - 10270043)
Vermiculite Mountain Mine (Libby Vermiculite Mine)
Zonolite Mine

Latitude: 48°27'37"N
Longitude: 115°25'36"W
Decimal Degree (lat, lon): 48.460277777778,-115.42666666667

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 Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AllophaneAmphiboleApatiteBaryteCalciteChalcopyriteClayFeldsparFluoriteNickeline
NonePyritePyroxeneRocksaltSmectite-vermiculiteSphalerite

19 IMA Minerals at location:
Actinolite  (*)Aegirine  (*)Baryte  (*)Calcite  (*)Chalcopyrite  (*)
Chrysocolla  (*)Diopside  (*)Fluorapatite  (*)Fluorite  (*)Galena  (*)
Magnesio-fluoro-arfvedsonite  (*)Microcline  (*)Pyrite  (*)Pyrrhotite  (*)Richterite  (*)
Sphalerite  (*)Tremolite  (*)Vermiculite  (*)Winchite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)212306343419
Aegirine  (*)PyroxeneNaFe3+Si2O612306341022
Baryte  (*)BaryteBa(SO4)123063411547
Calcite  (*)CalciteCa(CO3)123063427770
Chalcopyrite  (*)ChalcopyriteCuFeS2123063427198
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O12306343531
Diopside  (*)PyroxeneCaMgSi2O612306344135
Fluorapatite  (*)ApatiteCa5(PO4)3F12306342740
Fluorite  (*)FluoriteCaF212306349617
Galena  (*)RocksaltPbS123063424243
Magnesio-fluoro-arfvedsonite  (*)AmphiboleNaNa2(Mg4Fe3+)Si8O22F212306338
Microcline  (*)FeldsparK(AlSi3O8)12306344924
Pyrite  (*)PyriteFeS2123063439462
Pyrrhotite  (*)NickelineFe7S812306349056
Richterite  (*)AmphiboleNa(NaCa)Mg5Si8O22(OH)22230633,230634148
Sphalerite  (*)SphaleriteZnS123063421482
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)22230633,2306342562
Vermiculite  (*)Clay Smectite-vermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4·8H2O2230633,230634652
Winchite  (*)Amphibole   (NaCa)(Mg4Al)Si8O22(OH)22230633,23063451



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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