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:
East Rifle Creek Area, Garfield Co., Colorado, USA


mindat Locality ID: 31556
mindat URL: http://www.mindat.org/loc-31556.html

Tectonic Settings:

Total number of sublocalities beneath "East Rifle Creek Area, Garfield Co., Colorado, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Garfield Mine
Rifle Mine (Oriole Claims; Rifle Creek Mine; North Star Claims)

Latitude: 39°39'38"N
Longitude: 107°41'46"W
Decimal Degree (lat, lon): 39.660555555556,-107.69611111111
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 C Ca Cu Fe H K Mg Na O Pb S Se Si U V Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AcanthiteCalciteChalcanthiteChalcopyriteClayCopperDiasporeMarcasiteMicaNone
PascoitePyriteQuartzRocksaltSmectite-vermiculiteSphaleriteStraczekiteSulphur

25 IMA Minerals at location:
Acanthite  (*)Bayleyite  (*)Calcite  (*)Carnotite  (*)Chalcopyrite  (*)
Clausthalite  (*)Corvusite  (*)Dolomite  (*)Galena  (*)Liebigite  (*)
Marcasite  (*)Melanovanadite  (*)Metarossite  (*)Montmorillonite  (*)Montroseite  (*)
Pascoite  (*)Pyrite  (*)Quartz  (*)Roscoelite  (*)Selenium  (*)
Siderotil  (*)Silver  (*)Sphalerite  (*)Swartzite  (*)Tyuyamunite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Acanthite  (*)AcanthiteAg2S11887402793
Bayleyite  (*)NoneMg2(UO2)(CO3)3·18H2O2188739,18874038
Calcite  (*)CalciteCa(CO3)2188739,18874027770
Carnotite  (*)NoneK2(UO2)2(VO4)2·3H2O2188739,1887401184
Chalcopyrite  (*)ChalcopyriteCuFeS22188739,18874027198
Clausthalite  (*)RocksaltPbSe2188739,188740281
Corvusite  (*)Straczekite(Na,Ca,K)1-x(V5+,V4+,Fe2+)8O20·4H2O2188739,18874079
Dolomite  (*)NoneCaMg(CO3)22188739,1887409895
Galena  (*)RocksaltPbS2188739,18874024243
Liebigite  (*)NoneCa2(UO2)(CO3)3·11H2O118874078
Marcasite  (*)MarcasiteFeS22188739,1887405674
Melanovanadite  (*)NoneCa(V5+,V4+)4O10·5H2O118873920
Metarossite  (*)NoneCaV5+2O6·2H2O118874034
Montmorillonite  (*)Clay Smectite-vermiculite(Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O2188739,1887401508
Montroseite  (*)Diaspore(V3+,Fe2+,V4+)O(OH)2188739,188740136
Pascoite  (*)PascoiteCa3V5+10O28·17H2O2188739,18874078
Pyrite  (*)PyriteFeS22188739,18874039462
Quartz  (*)QuartzSiO22188739,18874061156
Roscoelite  (*)MicaKV3+2(Si3Al)O10(OH)22188739,188740253
Selenium  (*)SulphurSe2188739,188740143
Siderotil  (*)ChalcanthiteFe(SO4)·5H2O118874084
Silver  (*)CopperAg11887405186
Sphalerite  (*)SphaleriteZnS2188739,18874021482
Swartzite  (*)NoneCaMg(UO2)(CO3)3·12H2O11887404
Tyuyamunite  (*)NoneCa(UO2)2(VO4)2·5-8H2O2188739,188740628


No ages have been assigned to this locality yet.
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All locality data graciously provided by mindat.org

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