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:
Yuma Co., Colorado, USA


mindat Locality ID: 26106
mindat URL: http://www.mindat.org/loc-26106.html

Tectonic Settings:

Total number of sublocalities beneath "Yuma Co., Colorado, USA": 10
Total number of bottom-level sublocalities: 8

Number of Child Localities: 8
Child Localities:
Armel Meteorite
Niobrara Formation
Republican River
Unknown Clay
Unknown Clay - Fire (Refractory) Occurrence
Unknown Clay Occurrence
Unknown Pumice Deposit
Unknown Volcanic Materials Occurrence

Latitude: 40°0'27"N
Longitude: 102°13'56"W
Decimal Degree (lat, lon): 40.0075,-102.23222222222

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 Cr Cu Fe H Ni O S Si Ti 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmorphousClayCorundumCubaniteIronKaoliniteNonePyriteSphaleriteSpinel

10 IMA Minerals at location:
Chromite  (*)Ilmenite  (*)Iron  (*)Isocubanite  (*)Kaolinite  (*)
Mackinawite  (*)Opal  (*)Pyrite  (*)Taenite  (*)Troilite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Chromite  (*)SpinelFe2+Cr2O411986833902
Ilmenite  (*)CorundumFe2+Ti4+O311986835433
Iron  (*)IronFe11986831089
Isocubanite  (*)Sphalerite CubaniteCuFe2S31198683191
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)411986855591
Mackinawite  (*)None(Fe,Ni)1+xS (x = 0-0.07)1198683451
Opal  (*)AmorphousSiO2·nH2O11986872994
Pyrite  (*)PyriteFeS2119868539462
Taenite  (*)None(Ni,Fe)1198683703
Troilite  (*)NoneFeS11986831044



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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