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:
Main Ore Field, Kempirsai Cr Deposit, Kargaly, Aktobe Region, Kazakhstan

Oldest recorded age at locality: 427
Youngest recorded age at locality: 357.6

mindat Locality ID: 204456
mindat URL: http://www.mindat.org/loc-204456.html

Tectonic Settings:

Total number of sublocalities beneath "Main Ore Field, Kempirsai Cr Deposit, Kargaly, Aktobe Region, Kazakhstan": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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 Ca Cr Fe H Mg Na Ni O S Si 

Elements from minerals reported directly at this locality: Al Ca Cr Fe H Mg Na Ni O S Si 

Structural Groups for minerals in this locality: 
ClayGarnetMicaMilleriteNoneOlivinePyroxeneSpinel

7 IMA Minerals at location:
Aspidolite  (*)Chromite  (*)Diopside  (*)Enstatite  (*)Forsterite  (*)
Millerite  (*)Uvarovite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Aspidolite  (*)Mica ClayNaMg3(Si3Al)O10(OH)2427357.6011
Chromite  (*)SpinelFe2+Cr2O4427357.603902
Diopside  (*)PyroxeneCaMgSi2O6427357.604135
Enstatite  (*)PyroxeneMg2Si2O6427357.60944
Forsterite  (*)OlivineMg2(SiO4)427357.601188
Millerite  (*)MilleriteNiS427357.601066
Uvarovite  (*)GarnetCa3Cr2(SiO4)3427357.60212



Locality Notes from all Ages at Locality:
Age IDLocality Notes
Alexandra-0078western part
Alexandra-0079Diamond Pearl mine
Alexandra-0080Diamond Pearl mine


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
Alexandra-0077427394427-394Sm-NdAge of rock   Yes  185521Kempirsai Cr Deposit, Kargaly, Aktobe Region, KazakhstanKempirsai massifMelcher et al. (1999)10.1007/s001260050202MD34_250 
Alexandra-0078377.6374.4376 ± 1.6Rb-SrAge of rockamphibole, phlogopite, apatite  Yes  185521Kempirsai Cr Deposit, Kargaly, Aktobe Region, KazakhstanKempirsai massifMelcher et al. (1999)10.1007/s001260050202MD34_250 
Alexandra-0079394.6376.2385.4 ± 9.2Ar-ArAge of rockamphibole  Yes  185521Kempirsai Cr Deposit, Kargaly, Aktobe Region, KazakhstanKempirsai massifMelcher et al. (1999)10.1007/s001260050202MD34_250 
Alexandra-0080373.6357.6365.6 ± 8Ar-ArAge of rockamphibole  Yes  185521Kempirsai Cr Deposit, Kargaly, Aktobe Region, KazakhstanKempirsai massifMelcher et al. (1999)10.1007/s001260050202MD34_250 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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