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:
Logan Co., Colorado, USA


mindat Locality ID: 211148
mindat URL: http://www.mindat.org/loc-211148.html

Tectonic Settings:

Total number of sublocalities beneath "Logan Co., Colorado, USA": 8
Total number of bottom-level sublocalities: 7

Number of Child Localities: 7
Child Localities:
Atwood Meteorite
Fleming Meteorite
Kelly Meteorite
North Sterling Reservoir Area
Tom Hoosier
Unknown Clay - Fire (Refractory) Occurrence (MRDS - 10016842)
Unknown Clay - Fire (Refractory) Occurrence (MRDS - 10016844)

Latitude: 40°33'59"N
Longitude: 103°10'46"W
Decimal Degree (lat, lon): 40.566388888889,-103.17944444444

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: Ba Cr Cu Fe H Mg Ni O S Si Ti 

Elements from minerals reported directly at this locality: Ba O S 

Structural Groups for minerals in this locality: 
BaryteCopperCorundumCubaniteDiasporeIronNoneOlivineSphaleriteSpinel

10 IMA Minerals at location:
Baryte  (*)Chromite  (*)Copper  (*)Forsterite  (*)Goethite  (*)
Ilmenite  (*)Iron  (*)Isocubanite  (*)Taenite  (*)Troilite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Baryte  (*)BaryteBa(SO4)011547
Chromite  (*)SpinelFe2+Cr2O42192186,1921883902
Copper  (*)CopperCu11921863846
Forsterite  (*)OlivineMg2(SiO4)11921871188
Goethite  (*)DiasporeFeO(OH)11921867437
Ilmenite  (*)CorundumFe2+Ti4+O32192186,1921885433
Iron  (*)IronFe3192186,192187,1921881089
Isocubanite  (*)Sphalerite CubaniteCuFe2S32192186,192188191
Taenite  (*)None(Ni,Fe)2192186,192188703
Troilite  (*)NoneFeS3192186,192187,1921881044



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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