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:
Kono District, Eastern Province, Sierra Leone


mindat Locality ID: 285390
mindat URL: http://www.mindat.org/loc-285390.html

Tectonic Settings:

Total number of sublocalities beneath "Kono District, Eastern Province, Sierra Leone": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Koidu-Yengema

Latitude: 8°37'50"N
Longitude: 10°58'20"W
Decimal Degree (lat, lon): 8.6305555555556,-10.972222222222
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 C Ca Fe H K Mg O S Si Ti 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
CalciteClayCorundumDiamondIronMicaNickelineNonePerovskitePyrite
PyroxeneRocksaltRutileSpinelTitanite

15 IMA Minerals at location:
Calcite  (*)Diamond  (*)Diopside  (*)Hematite  (*)Ilmenite  (*)
Iron  (*)Magnetite  (*)Perovskite  (*)Phlogopite  (*)Pyrite  (*)
Pyrrhotite  (*)Rutile  (*)Titanite  (*)Titanomaghemite  (*)Wüstite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Calcite  (*)CalciteCa(CO3)110487627770
Diamond  (*)DiamondC1104876697
Diopside  (*)PyroxeneCaMgSi2O611048764135
Hematite  (*)CorundumFe2O3110487614640
Ilmenite  (*)CorundumFe2+Ti4+O311048765433
Iron  (*)IronFe11048761089
Magnetite  (*)SpinelFe2+Fe3+2O4110487614899
Perovskite  (*)PerovskiteCaTiO31104876495
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)211048762273
Pyrite  (*)PyriteFeS2110487639462
Pyrrhotite  (*)NickelineFe7S811048769056
Rutile  (*)RutileTiO211048765614
Titanite  (*)TitaniteCaTi(SiO4)O11048764899
Titanomaghemite  (*)Spinel(Ti0.5   0.5)Fe3+2O411048765
Wüstite  (*)RocksaltFeO110487674


No ages have been assigned to this locality yet.
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All locality data graciously provided by mindat.org

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