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:
Nine Mile Mining District, Missoula Co., Montana, USA

Oldest recorded age at locality: 910.38
Youngest recorded age at locality: 910.38

mindat Locality ID: 186229
mindat URL: http://www.mindat.org/loc-186229.html

Tectonic Settings:

Total number of sublocalities beneath "Nine Mile Mining District, Missoula Co., Montana, USA": 45
Total number of bottom-level sublocalities: 45

Number of Child Localities: 45
Child Localities:
Able Placer
Annie Placer
B. S. P. T. Occurrence
Big Rock Placer Claim
Billie Boo Placer (Buddy Boy Placer)
Busted Crock Placer
Double 1 & 2 Placers
Eileen Marcia Placer Mine (Eileen Marsha)
Envy Placers Nos. 1-4
Favorite Mine
First Hope Placer
Fool Hen Placer
Frances Copper Prospect (Frances Mine)
Gooley Placer
Hautilla Prospect
Hobo Placer
Housum Placer
Ida A Placer (B & S Placer Mine)
Jolene Placer
Josephine Creek Placer Mine
Josephine Prospect
Kennedy Creek Mine
Kennedy Creek Placer Mine
La Chambre Placer Mine (Eileen Marcia Placer)
Lost Cabin Group
Lubelle Placer
Marrion Creek Gold Mining Company Placer
Mattie V Placer
Nine Mile Mine
Nine Mile Operation
Ninemile Creek Placers
Nugget Mine
Pine Creek Mine
Platinum Placer (Drie Gulch Placer; Spring Gulch Placer)
Robin L. Placer
San Martina Mine
Shoestring Property
The Chinamen Mine (Ulrich Mine; William Mine)
Torgelson Property
Twin Creeks Placer
Unknown Pumice Occurrence (MRDS - 10019057)
Unnamed Gold Mine (MRDS - 10245828)
Unnamed Gold Occurrence (MRDS - 10294547)
Unnamed Placer (MRDS - 10010451)
Unnamed Pumice Occurrence (MRDS - 10197872)

Latitude: 47°10'51"N
Longitude: 114°33'6"W
Decimal Degree (lat, lon): 47.180833333333,-114.55166666667

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: Ag Al Au Ba C Cu Fe H K O Pb S Si Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
BaryteChalcopyriteClayCopperCorundumCovelliteMalachiteMicaNonePyrite
QuartzRocksaltSphalerite

12 IMA Minerals at location:
Baryte  (*)Chalcopyrite  (*)Covellite  (*)Galena  (*)Gold  (*)
Hematite  (*)Malachite  (*)Muscovite  (*)Pyrite  (*)Quartz  (*)
Silver  (*)Sphalerite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Baryte  (*)BaryteBa(SO4)123215611547
Chalcopyrite  (*)ChalcopyriteCuFeS24232140,232142,232148,23215227198
Covellite  (*)CovelliteCuS12321524165
Galena  (*)RocksaltPbS3232140,232148,23215224243
Gold  (*)CopperAu31232128,232129,232131,232132,232133,232134,232135,232136,232137,232138,232139,232140,232141,232143,232144,232145,232146,232147,232150,232151,232152,232153,232154,232155,232156,232158,232161,232162,232165,232167,23217130554
Hematite  (*)CorundumFe2O3123215614640
Malachite  (*)MalachiteCu2(CO3)(OH)2123214212537
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2123215217380
Pyrite  (*)PyriteFeS22232152,23215639462
Quartz  (*)QuartzSiO22232152,23215661156
Silver  (*)CopperAg4232140,232151,232152,2321565186
Sphalerite  (*)SphaleriteZnS2232140,23215221482



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
USGS-Rb-Sr-03087910.38910.38910.38Rb-Sr whole rock     165197Torgelson Property, Nine Mile Mining District, Missoula Co., Montana, USA USGS-Rb-Sr USGS-Rb-Sr 


SampleSource LocalityReference URL


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