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:
Boulder Mountains Area, Silver Bow Co., Montana, USA


mindat Locality ID: 186266
mindat URL: http://www.mindat.org/loc-186266.html

Tectonic Settings:

Total number of sublocalities beneath "Boulder Mountains Area, Silver Bow Co., Montana, USA": 5
Total number of bottom-level sublocalities: 5

Number of Child Localities: 5
Child Localities:
Fluorite Mine (MRDS - 10019808)
Green Monster Occurrence (Bull Run; Benich)
Niagra Mine
Perry Deposit
Porcupine Lode Prospect

Latitude: 46°3'15"N
Longitude: 112°35'59"W
Decimal Degree (lat, lon): 46.054166666667,-112.59972222222

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: Au Be C Ca Cu F H Mn O S Si Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
CalciteCancrinite-sodaliteCopperFluoriteMalachiteNoneNot in a structural groupQuartzRhodoniteSodalite
Sphalerite

9 IMA Minerals at location:
Cuprite  (*)Fluorite  (*)Gold  (*)Helvine  (*)Malachite  (*)
Quartz  (*)Rhodochrosite  (*)Rhodonite  (*)Sphalerite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Cuprite  (*)Not in a structural groupCu2O12336062970
Fluorite  (*)FluoriteCaF212336059617
Gold  (*)CopperAu123360930554
Helvine  (*)Sodalite Cancrinite-sodaliteBe3Mn2+4(SiO4)3S1233607237
Malachite  (*)MalachiteCu2(CO3)(OH)2123360612537
Quartz  (*)QuartzSiO2123360761156
Rhodochrosite  (*)CalciteMn(CO3)12336071711
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)1233607969
Sphalerite  (*)SphaleriteZnS123360721482



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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