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:
Ogonja Mine (Onganja Mine; Emke Mine; Emka; Otjisongati), Ogonja (Onganja), Seeis, Windhoek District, Khomas Region, Namibia

Oldest recorded age at locality: 521
Youngest recorded age at locality: 514

mindat Locality ID: 2423
mindat URL: http://www.mindat.org/loc-2423.html

Tectonic Settings:

Total number of sublocalities beneath "Ogonja Mine (Onganja Mine; Emke Mine; Emka; Otjisongati), Ogonja (Onganja), Seeis, Windhoek District, Khomas Region, Namibia": 0
Total number of bottom-level sublocalities: 0

Latitude: 22°5'58"S
Longitude: 17°27'30"E
Decimal Degree (lat, lon): -22.099444444444,17.458333333333
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: Ag Al Au C Ca Cu F Fe H Mo Na O P S Si Ti Zn 

Elements from minerals reported directly at this locality: Ag Al Au C Ca Cu F Fe H Mo Na O P S Si Ti Zn 

Structural Groups for minerals in this locality: 
AllophaneApatiteBrochantiteCalciteChalcopyriteCopperCorundumDiasporeFeldsparMalachite
MolybdeniteNoneNot in a structural groupPyriteQuartzRutileSpinel

22 IMA Minerals at location:
Albite  (*)Azurite  (*)Brochantite  (*)Calcite  (*)Chalcocite  (*)
Chalcopyrite  (*)Chrysocolla  (*)Copper  (*)Cuprite  (*)Fluorapatite  (*)
Goethite  (*)Gold  (*)Hematite  (*)Magnetite  (*)Malachite  (*)
Molybdenite  (*)Pyrite  (*)Quartz  (*)Rutile  (*)Siderite  (*)
Silver  (*)Smithsonite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)52151408803
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)252151405509
Brochantite  (*)BrochantiteCu4(SO4)(OH)652151401633
Calcite  (*)CalciteCa(CO3)521514027770
Chalcocite  (*)NoneCu2S52151405707
Chalcopyrite  (*)ChalcopyriteCuFeS2521514027198
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O52151403531
Copper  (*)CopperCu52151403846
Cuprite  (*)Not in a structural groupCu2O52151402970
Fluorapatite  (*)ApatiteCa5(PO4)3F52151402740
Goethite  (*)DiasporeFeO(OH)52151407437
Gold  (*)CopperAu521514030554
Hematite  (*)CorundumFe2O3521514014640
Magnetite  (*)SpinelFe2+Fe3+2O4521514014899
Malachite  (*)MalachiteCu2(CO3)(OH)2521514012537
Molybdenite  (*)MolybdeniteMoS252151405800
Pyrite  (*)PyriteFeS2521514039462
Quartz  (*)QuartzSiO2521514061156
Rutile  (*)RutileTiO252151405614
Siderite  (*)CalciteFe(CO3)52151406417
Silver  (*)CopperAg52151405186
Smithsonite  (*)CalciteZn(CO3)52151402473


3 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
Mo-00085521515518±3Re-Os molybdeniteTT-615  Molybdenite Mo2423Ogonja Mine (Onganja Mine; Emke Mine; Emka; Otjisongati), Ogonja (Onganja), Seeis, Windhoek District, Khomas Region, NamibiaOnganjaMoore (2010)10.2113/gssajg.113.4.445SAJG113_445 
Mo-00086520514517±3Re-Os molybdeniteTT-623  Molybdenite Mo2423Ogonja Mine (Onganja Mine; Emke Mine; Emka; Otjisongati), Ogonja (Onganja), Seeis, Windhoek District, Khomas Region, NamibiaOnganjaMoore (2010)10.2113/gssajg.113.4.445SAJG113_445 
Mo-00087521515518±3Re-Os molybdeniteTT-624  Molybdenite Mo2423Ogonja Mine (Onganja Mine; Emke Mine; Emka; Otjisongati), Ogonja (Onganja), Seeis, Windhoek District, Khomas Region, NamibiaOnganjaMoore (2010)10.2113/gssajg.113.4.445SAJG113_445 

SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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