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:
Las Animas Co., Colorado, USA

Oldest recorded age at locality: 23.5
Youngest recorded age at locality: 20.89

mindat Locality ID: 65503
mindat URL: http://www.mindat.org/loc-65503.html

Tectonic Settings:

Total number of sublocalities beneath "Las Animas Co., Colorado, USA": 101
Total number of bottom-level sublocalities: 92

Number of Child Localities: 79
Child Localities:
Aguilar-Apishapa Pass
Apishapa Creek
Apishapa Quadrangle
Chacuaco Creek
Col-Tex Company
El Moro Coal Field
Gravel Pit (MRDS - 10135188)
Gravel Pit (MRDS - 10142263)
Gravel Pit (MRDS - 10142711)
Gravel Pit (MRDS - 10142740)
Gravel Pit (MRDS - 10142781)
Gravel Pit (MRDS - 10166353)
Gravel Pit (MRDS - 10166380)
Gravel Pit (MRDS - 10166412)
Gravel Pit (MRDS - 10166531)
Gravel Pit (MRDS - 10166848)
Gravel Pit (MRDS - 10167087)
Gravel Pit (MRDS - 10190928)
Gravel Pit (MRDS - 10191161)
Gravel Pit (MRDS - 10191368)
Gravel Pit (MRDS - 10191440)
Gravel Pit (MRDS - 10215042)
Gravel Pit (MRDS - 10215157)
Gravel Pit (MRDS - 10215259)
Gravel Pit (MRDS - 10215405)
Gravel Pit (MRDS - 10215594)
Gravel Pit (MRDS - 10215602)
Gravel Pit (MRDS - 10232095)
Gravel Pit (MRDS - 10239178)
Gravel Pit (MRDS - 10239201)
Gravel Pit (MRDS - 10239457)
Gravel Pit (MRDS - 10239518)
Gravel Pit (MRDS - 10239825)
Gravel Pit (MRDS - 10263829)
Gravel Pit (MRDS - 10264276)
Gravel Pit (MRDS - 10287949)
Gravel Pit (MRDS - 10288410)
Gravel Pit (MRDS - 10288436)
Gravel Pits (MRDS - 10142194)
Gravel Pits (MRDS - 10215605)
Gravel Pits (MRDS - 10264098)
Gravel Pits (MRDS - 10287988)
Johnny Branch
Jolly Pit
La Junta
La Veta District
Leone Sand And Gravel
Mauricio Canyon
New Mary Mine
Ninaview Area
Pinon Canyon Area
Purgatoire River
Purgatory Canyon
Santa Fe Pit
Spanish Peaks Area
Spanish Peaks Area (2)
Stonewall
Summit Brick Plant
Summit Of Range Of Animas River
Thatcher
Thatcher Clay Mine
Trinidad
Trinidad Area
Trinidad Coal Field
Trinidad Mine
Trinidad Operation
Unknown Clay - Fire (Refractory) Occurrence (MRDS - 10016769)
Unknown Clay - Fire (Refractory) Occurrence (MRDS - 10016771)
Unknown Clay - Fire (Refractory) Occurrence (MRDS - 10016773)
Unknown Clay - Fire (Refractory) Occurrence (MRDS - 10016774)
Unknown Clay - Fire (Refractory) Occurrence (MRDS - 10016906)
Unknown Clay - Fire (Refractory) Occurrence (MRDS - 10016909)
Unknown Clay - Fire (Refractory) Occurrence (MRDS - 10016910)
Unknown Clay - Fire (Refractory) Occurrence (MRDS - 10016912)
Unknown Gypsum - Anhydrite (MRDS - 10288093)
Unknown Limestone - Dimension (MRDS - 10288519)
Unknown Limestone - General (MRDS - 10016776)
Welte Pit
Weston

Latitude: 37°16'20"N
Longitude: 104°17'56"W
Decimal Degree (lat, lon): 37.272222222222,-104.29888888889

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: Al As Au Ba C Ca Ce Cu Fe H K Mg Na Nb O Pb S Sb Si Ta Th Ti U V Y Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AnalcimeArsenopyriteBaryteCalciteCancrinite-sodaliteChalcopyriteClayColumbiteCopperKaolinite
MarcasiteMordeniteNoneNot in a structural groupPrehnitePyroxeneQuartzRocksaltSodaliteSphalerite
Tetrahedrite

25 IMA Minerals at location:
Alunite  (*)Analcime  (*)Arsenopyrite  (*)Augite  (*)Baryte  (*)
Calcite  (*)Carnotite  (*)Chalcopyrite  (*)Euxenite-(Y)  (*)Galena  (*)
Gold  (*)Graphite  (*)Haüyne  (*)Kaolinite  (*)Laumontite  (*)
Marcasite  (*)Mordenite  (*)Prehnite  (*)Quartz  (*)Siderite  (*)
Sphalerite  (*)Tetrahedrite-(Zn)  (*)Tyuyamunite  (*)Vésigniéite  (*)Wairakite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Alunite  (*)NoneKAl3(SO4)2(OH)61192147966
Analcime  (*)AnalcimeNa(AlSi2O6)·H2O23.521.52192080,1920821627
Arsenopyrite  (*)ArsenopyriteFeAsS11921629052
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O611920822060
Baryte  (*)BaryteBa(SO4)119214511547
Calcite  (*)CalciteCa(CO3)6192081,192132,192133,192134,192135,19214527770
Carnotite  (*)NoneK2(UO2)2(VO4)2·3H2O2192127,1921361184
Chalcopyrite  (*)ChalcopyriteCuFeS24192132,192133,192134,19213527198
Euxenite-(Y)  (*)ColumbiteY(NbTi)O61192163414
Galena  (*)RocksaltPbS4192132,192133,192134,19213524243
Gold  (*)CopperAu119215030554
Graphite  (*)NoneC2192085,1921642812
Haüyne  (*)Sodalite Cancrinite-sodaliteNa3Ca(Si3Al3)O12(SO4)1192149158
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)411921645591
Laumontite  (*)Not in a structural groupCaAl2Si4O12·4H2O23.521.511920801271
Marcasite  (*)MarcasiteFeS211921555674
Mordenite  (*)Mordenite(Na2,Ca,K2)4(Al8Si40)O96·28H2O23.521.51192080405
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)211921511898
Quartz  (*)QuartzSiO26192132,192133,192134,192135,192154,19215961156
Siderite  (*)CalciteFe(CO3)4192132,192133,192134,1921356417
Sphalerite  (*)SphaleriteZnS4192132,192133,192134,19213521482
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S134192132,192133,192134,1921355317
Tyuyamunite  (*)NoneCa(UO2)2(VO4)2·5-8H2O1192136628
Vésigniéite  (*)NoneCu3Ba(VO4)2(OH)222.4520.89119215246
Wairakite  (*)AnalcimeCa(Si4Al2)O12·2H2O23.521.5119208073



4 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
NAVDAT-141523.521.522.5±1   1415    145249Aguilar-Apishapa Pass, Las Animas Co., Colorado, USA NAVDAT NAVDAT 
NAVDAT-4410821.9521.8921.92±0.03   44108    115637Gravel Pit (MRDS - 10142781), Las Animas Co., Colorado, USA NAVDAT NAVDAT 
NAVDAT-4410622.4522.1922.32±0.13  sanidine44106  Sanidine  159342Stonewall, Las Animas Co., Colorado, USA NAVDAT NAVDAT 
NAVDAT-4411820.9520.8920.92±0.03   44118    159342Stonewall, Las Animas Co., Colorado, USA NAVDAT NAVDAT 


SampleSource LocalityReference URL


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