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:
Ophir Mining District, Powell Co., Montana, USA


mindat Locality ID: 50315
mindat URL: http://www.mindat.org/loc-50315.html

Tectonic Settings:

Total number of sublocalities beneath "Ophir Mining District, Powell Co., Montana, USA": 31
Total number of bottom-level sublocalities: 31

Number of Child Localities: 31
Child Localities:
Big View Mine
Bumblebee
Butterfly Occurrence
Carpenter Gulch Placers
Coon's Tungsten Occurrence
Cyclone Mine
Denver Mine
Eldorado Mine
Esmeralda Hill
Esmeralda Mine
Fairview Mine (Coulson Mine)
Flagstaff Mine
Granite Gold Mining Company Occurrence
Jack Pine Mine (Senecal Mine; Trout Creek Mine)
Leprechaun Placer
Little Daisy Mine (Orient; Alice Claims; Maggie)
McKay Mine
Minnie Healy
Mitchell Prospect (John Mitchell Property)
Nancy Helen Mine
Ophir Creek
Ophir Gulch Placers
Ophir Mine (Reservior And Ophir Patents)
Opsata Mine
Price Claims
Snowshoe Gulch Placers
Snowshoe Gulch Tungsten Property (Shamrock; Friday; Snowbird; Boulder Ore; Montana Old Lady Smith; Arnold Bielenberg; Strategic)
Strategic And Tungsten Mine (Old Lady Smith; Montana; Flagstaff; Friday; Ladysmith; Snowshoe Gulch; Strategic; Arnold; ; Boulder Ores; Inc. - Helena; Mont.; Boulder Ores Group)
Three Mile Creek Placer
Unnamed Placer Mine (MRDS - 10148537)
Wall Street Mine

Latitude: 46°40'55"N
Longitude: 112°30'37"W
Decimal Degree (lat, lon): 46.681944444444,-112.51027777778
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 As Au C Ca Cu Fe H Mg O Pb S Sb Si W 

Elements from minerals reported directly at this locality: Ag Fe O S Sb 

Structural Groups for minerals in this locality: 
ArsenicCalciteChalcopyriteClayClinozoisiteCopperCorundumEpidoteMalachiteNone
PyritePyroxeneQuartzRocksaltScheeliteSmectite-vermiculiteSpinelTetrahedrite

18 IMA Minerals at location:
Antimony  (*)Calcite  (*)Chalcopyrite  (*)Diopside  (*)Dolomite  (*)
Epidote  (*)Galena  (*)Gold  (*)Hematite  (*)Magnetite  (*)
Malachite  (*)Proustite  (*)Pyrargyrite  (*)Pyrite  (*)Quartz  (*)
Scheelite  (*)Tetrahedrite-(Zn)  (*)Vermiculite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Antimony  (*)ArsenicSb1233031363
Calcite  (*)CalciteCa(CO3)123304227770
Chalcopyrite  (*)ChalcopyriteCuFeS23233018,233025,23304227198
Diopside  (*)PyroxeneCaMgSi2O612330314135
Dolomite  (*)NoneCaMg(CO3)212330409895
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)2233025,2330428173
Galena  (*)RocksaltPbS123303124243
Gold  (*)CopperAu17233017,233018,233019,233021,233022,233025,233026,233027,233031,233032,233037,233038,233039,233040,233041,233042,23304430554
Hematite  (*)CorundumFe2O3014640
Magnetite  (*)SpinelFe2+Fe3+2O42233031,23304214899
Malachite  (*)MalachiteCu2(CO3)(OH)25233017,233018,233020,233021,23302512537
Proustite  (*)NoneAg3AsS31233026733
Pyrargyrite  (*)NoneAg3SbS301425
Pyrite  (*)PyriteFeS24233018,233022,233026,23304039462
Quartz  (*)QuartzSiO28233017,233018,233021,233022,233026,233032,233040,23304261156
Scheelite  (*)ScheeliteCa(WO4)2233042,2330434894
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S133233018,233022,2330265317
Vermiculite  (*)Clay Smectite-vermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4·8H2O1233021652


No ages have been assigned to this locality yet.
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