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:
Independence Mining District, Sweet Grass Co., Montana, USA


mindat Locality ID: 186276
mindat URL: http://www.mindat.org/loc-186276.html

Tectonic Settings:

Total number of sublocalities beneath "Independence Mining District, Sweet Grass Co., Montana, USA": 39
Total number of bottom-level sublocalities: 38

Number of Child Localities: 31
Child Localities:
Accident Prospect
Annie Prospect
Blue Lake Prospects
Brilliant Prospect
Clara Prospect
Columbus Prospect
Cumberland Prospect
Daisy Group (Duffy)
Dixie Prospect
East Rainbow Occurrence (Simons Map Location No. 130)
Emma Prospect
Golden Slipper Prospect
Half Moon Mine
Haystack Peak Prospect
Hidden Treasure Mine
Ida B Prospect
Independence A Prospect
Lilliput Fraction 221 Prospect
Midnight Bell Occurrence
Mud Lake Prospects
North Star Prospect
Placer And Placer (Placer)
Poorman Group
Queen Victory Prospect
Rainbow Occurrence (Simon's Map Location No. 131)
Seneca Prospect
Skylark Prospect
Skyline Prospect (Ski Line Mine; Mtn. View No. 1 & No. 2)
Springfield Prospect
Tam And Zana Prospect
Wheelon Prospect

Latitude: 45°13'3"N
Longitude: 110°12'7"W
Decimal Degree (lat, lon): 45.2175,-110.20194444444

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: Fe O Pb S 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
BaryteNonePyriteRocksalt

3 IMA Minerals at location:
Anglesite  (*)Galena  (*)Pyrite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Anglesite  (*)BarytePb(SO4)12341732734
Galena  (*)RocksaltPbS123417324243
Pyrite  (*)PyriteFeS2123417339462



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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