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:
Thiruvannaamalai District (Tiruvannamalai), Tamil Nadu, India


mindat Locality ID: 234884
mindat URL: http://www.mindat.org/loc-234884.html

Tectonic Settings:

Total number of sublocalities beneath "Thiruvannaamalai District (Tiruvannamalai), Tamil Nadu, India": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Banded Iron Formation (BIF)

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 Fe H Mg O Si 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmphiboleCorundumDiasporeNoneNot in a structural groupPyroxeneQuartzSpinel

8 IMA Minerals at location:
Actinolite  (*)Goethite  (*)Grunerite  (*)Hedenbergite  (*)Hematite  (*)
Magnetite  (*)Quartz  (*)Sillimanite  (*)
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)21668203419
Goethite  (*)DiasporeFeO(OH)1668207437
Grunerite  (*)Amphibole   Fe2+2Fe2+5Si8O22(OH)2166820223
Hedenbergite  (*)PyroxeneCaFe2+Si2O6166820741
Hematite  (*)CorundumFe2O316682014640
Magnetite  (*)SpinelFe2+Fe3+2O416682014899
Quartz  (*)QuartzSiO216682061156
Sillimanite  (*)Not in a structural groupAl2SiO51668201516


No ages have been assigned to this locality yet.
SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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