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:
Sakoany Deposit, Katsepy, Mitsinjo, Boeny, Madagascar

Oldest recorded age at locality: 66
Youngest recorded age at locality: 61.6

mindat Locality ID: 5531
mindat URL: http://www.mindat.org/loc-5531.html

Tectonic Settings:

Total number of sublocalities beneath "Sakoany Deposit, Katsepy, Mitsinjo, Boeny, Madagascar": 0
Total number of bottom-level sublocalities: 0

Latitude: 15°51'18"S
Longitude: 46°13'50"E
Decimal Degree (lat, lon): -15.855,46.230555555556

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: O S Sr 

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

Structural Groups for minerals in this locality: 
BaryteNone

1 IMA Minerals at location:
Celestine  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Celestine  (*)BaryteSr(SO4)6661.601252



Locality Notes from all Ages at Locality:
Age IDLocality Notes
MR41_405_001The celestine-containing geodes or concretions are found in a sedimentary deposit consisting of lenses of Lower Paleocene sandy marls up to 30 meters thick bordered by a fossiliferous limestone below and a sandy chalky conglomerate above.


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
MR41_405_0016661.6Lower Paleocene        5531Sakoany Deposit, Katsepy, Mitsinjo, Boeny, MadagascarSakoanyWilson (2010) MR41_405Diagenetic (post-depositional) processes involving the circulation of low-temperature water (probably seawater, supplying the Sr) and the decomposition of organic material (yielding sulfate) resulted in strontium enrichment and the deposition of celestine (strontium sulfate ) crystals as geodes , nodules and concretions.


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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