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:
Poncha Pass Area, Chaffee Co., Colorado, USA


mindat Locality ID: 134817
mindat URL: http://www.mindat.org/loc-134817.html

Tectonic Settings:

Total number of sublocalities beneath "Poncha Pass Area, Chaffee Co., Colorado, USA": 5
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Droz Creek
Poncha Hot Springs
Poncha Pass Claim (3 Claims; Lucky Nos. 1)
Venture No. 2 Prospect (Luckie; Venture No. 2-Luckie Claim; Lucky 2 Claim)

Latitude: 38°27'26"N
Longitude: 106°5'37"W
Decimal Degree (lat, lon): 38.457222222222,-106.09361111111
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 Ba C Ca F Fe H K Mg Mn Mo O S Si W 

Elements from minerals reported directly at this locality: Al Ca H K O Si 

Structural Groups for minerals in this locality: 
AcanthiteAmorphousCalciteClayClinozoisiteEpidoteFluoriteGarnetMicaMolybdenite
NonePyroxeneQuartzRutileScheelite

13 IMA Minerals at location:
Acanthite  (*)Calcite  (*)Diopside  (*)Epidote  (*)Fluorite  (*)
Grossular  (*)Molybdenite  (*)Muscovite  (*)Opal  (*)Pyrolusite  (*)
Quartz  (*)Romanèchite  (*)Scheelite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Acanthite  (*)AcanthiteAg2S11856602793
Calcite  (*)CalciteCa(CO3)118566127770
Diopside  (*)PyroxeneCaMgSi2O611856624135
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)11856628173
Fluorite  (*)FluoriteCaF22185661,1856629617
Grossular  (*)GarnetCa3Al2(SiO4)301544
Molybdenite  (*)MolybdeniteMoS211856605800
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2017380
Opal  (*)AmorphousSiO2·nH2O11856612994
Pyrolusite  (*)RutileMnO211856613106
Quartz  (*)QuartzSiO22185662,18566361156
Romanèchite  (*)None(Ba,H2O)2(Mn4+,Mn3+)5O101185661312
Scheelite  (*)ScheeliteCa(WO4)2185662,1856634894


No ages have been assigned to this locality yet.
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