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:
Commune Sandaré, Cercle De Nioro Du Sahel, Kayes Region, Mali

Oldest recorded age at locality: 201
Youngest recorded age at locality: 145

mindat Locality ID: 248450
mindat URL: http://www.mindat.org/loc-248450.html

Tectonic Settings:

Total number of sublocalities beneath "Commune Sandaré, Cercle De Nioro Du Sahel, Kayes Region, Mali": 6
Total number of bottom-level sublocalities: 4

Number of Child Localities: 1
Child Localities:
Arrondissement Sandaré

Latitude: 14°42'39"N
Longitude: 10°16'23"W
Decimal Degree (lat, lon): 14.710833333333,-10.273055555556
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 F Fe H Mg Na O Si Ti 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmphiboleChloriteClayClinozoisiteEpidoteGarnetNonePrehniteQuartzSpinel
TitaniteVesuvianite

10 IMA Minerals at location:
Actinolite  (*)Andradite  (*)Chamosite  (*)Epidote  (*)Grossular  (*)
Magnetite  (*)Prehnite  (*)Quartz  (*)Titanite  (*)Vesuvianite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)22011451802283419
Andradite  (*)GarnetCa3Fe3+2(SiO4)32011451802281534
Chamosite  (*)Chlorite Clay(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8201145180228577
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)2011451802288173
Grossular  (*)GarnetCa3Al2(SiO4)32011451802281544
Magnetite  (*)SpinelFe2+Fe3+2O420114518022814899
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)22011451802281898
Quartz  (*)QuartzSiO220114518022861156
Titanite  (*)TitaniteCaTi(SiO4)O2011451802284899
Vesuvianite  (*)Vesuvianite(Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)102011451802281395


Locality Notes from all Ages at Locality:
Age IDLocality Notes
Giersdorf_00000270Diabase intrusions into limestone in Mali, forming the Kaarta Massif


1 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
Giersdorf_00000270201145Jurassic      Epidote, Prehnite, Vesuvianite 27645Sandaré, Arrondissement Sandaré, Commune Sandaré, Cercle De Nioro Du Sahel, Kayes Region, MaliSandaréJohnson et al. (1995) GG31_152Age of diabase intrusions into limestone

SampleSource LocalityReference URL

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