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:
Ambatolampy Commune, Tsiroanomandidy District, Bongolava, Madagascar


mindat Locality ID: 301017
mindat URL: http://www.mindat.org/loc-301017.html

Tectonic Settings:

Total number of sublocalities beneath "Ambatolampy Commune, Tsiroanomandidy District, Bongolava, Madagascar": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Ambohiby Massif

Latitude: 18°52'32"S
Longitude: 46°10'53"E
Decimal Degree (lat, lon): -18.875555555556,46.181388888889

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 K Mg Na O Si Ti Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmphiboleClayClinozoisiteEpidoteFeldsparMicaNonePyroxeneQuartzSapphirine
TitaniteZircon

14 IMA Minerals at location:
Aegirine  (*)Aenigmatite  (*)Arfvedsonite  (*)Augite  (*)Diopside  (*)
Epidote  (*)Ferro-edenite  (*)Hedenbergite  (*)Magnesio-arfvedsonite  (*)Muscovite  (*)
Orthoclase  (*)Quartz  (*)Titanite  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Aegirine  (*)PyroxeneNaFe3+Si2O61792321022
Aenigmatite  (*)SapphirineNa4[Fe2+10Ti2]O4[Si12O36]179232133
Arfvedsonite  (*)AmphiboleNaNa2(Fe2+4Fe3+)Si8O22(OH)2179232295
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O61792322060
Diopside  (*)PyroxeneCaMgSi2O61792324135
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)1792328173
Ferro-edenite  (*)AmphiboleNaCa2Fe2+5(Si7Al)O22(OH)217923257
Hedenbergite  (*)PyroxeneCaFe2+Si2O6179232741
Magnesio-arfvedsonite  (*)AmphiboleNaNa2(Mg4Fe3+)Si8O22(OH)217923279
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)217923217380
Orthoclase  (*)FeldsparK(AlSi3O8)1792322349
Quartz  (*)QuartzSiO217923261156
Titanite  (*)TitaniteCaTi(SiO4)O1792324899
Zircon  (*)ZirconZr(SiO4)1792325251



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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