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:
Gabon

Oldest recorded age at locality: 2200
Youngest recorded age at locality: 115

mindat Locality ID: 14568
mindat URL: http://www.mindat.org/loc-14568.html

Tectonic Settings:

Total number of sublocalities beneath "Gabon": 47
Total number of bottom-level sublocalities: 30

Number of Child Localities: 9
Child Localities:
Estuaire Province
Haut-Ogooué Province
Moyen-Ogooué Province
Ngounié Province
Nyanga Province
Ogooué-Ivindo Province
Ogooué-Lolo Province
Ogooué-Maritime Province
Woleu-Ntem Province

Latitude: 0°-12'-47"N
Longitude: 11°40'9"E
Decimal Degree (lat, lon): -0.21305555555556,11.669166666667
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 As Au Ba C Ca Ce Cl Cr Cu F Fe H K La Mg Mn Mo Na Nd Ni O P Pb Pt S Si Th Ti U V Y Zn Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AluniteAmphiboleApatiteAutuniteBaddeleyiteBaryteBrackebuschiteCalciteChalcopyriteChlorite
ClayCopperCoronaditeCorundumCovelliteDescloiziteDiamondDiasporeDigeniteFeldspar
FluoriteFritzscheiteJohanniteKaoliniteMicaMiniumMolybdeniteMonaziteNatroautuniteNatrochalcite
NickelineNolaniteNoneNot in a structural groupOlivinePentlanditePhosphuranylitePyriteQuartzRhabdophane
RocksaltRutileScheeliteSchoepiteSchubneliteSphaleriteSpinelStraczekiteTalcTitanite
WölsendorfiteZirconZirconolite

93 IMA Minerals at location:
Actinolite  (*)Anatase  (*)Anglesite  (*)Anorthite  (*)Autunite  (*)
Baddeleyite  (*)Bariandite  (*)Baryte  (*)Bassetite  (*)Bornite  (*)
Brackebuschite  (*)Calcite  (*)Carnotite  (*)Chalcopyrite  (*)Chernikovite  (*)
Chervetite  (*)Chromite  (*)Clinochlore  (*)Coffinite  (*)Copper  (*)
Corvusite  (*)Covellite  (*)Crandallite  (*)Cryptomelane  (*)Curienite  (*)
Dewindtite  (*)Diamond  (*)Digenite  (*)Dolomite  (*)Donbassite  (*)
Duttonite  (*)Fervanite  (*)Florencite-(Ce)  (*)Florencite-(La)  (*)Fluorapatite  (*)
Forsterite  (*)Fourmarierite  (*)Francevillite  (*)Françoisite-(Nd)  (*)Galena  (*)
Goethite  (*)Gold  (*)Hematite  (*)Ilmenite  (*)Ilsemannite  (*)
Johannite  (*)Kaolinite  (*)Karelianite  (*)Kasolite  (*)Kutnohorite  (*)
Lead  (*)Lenoblite  (*)Magnetite  (*)Manganite  (*)Melanovanadite  (*)
Metavanuralite  (*)Minium  (*)Molybdenite  (*)Monazite-(Ce)  (*)Montroseite  (*)
Mottramite  (*)Mounanaite  (*)Muscovite  (*)Ningyoite  (*)Nolanite  (*)
Pentlandite  (*)Phlogopite  (*)Pyrite  (*)Pyrolusite  (*)Pyrrhotite  (*)
Quartz  (*)Rhodochrosite  (*)Roscoelite  (*)Rutherfordine  (*)Schoepite  (*)
Schubnelite  (*)Sperrylite  (*)Sphalerite  (*)Sudoite  (*)Talc  (*)
Thorite  (*)Titanite  (*)Torbernite  (*)Tremolite  (*)Uraninite  (*)
Uranophane-α  (*)Uranopilite  (*)Vanadinite  (*)Vanuralite  (*)Wölsendorfite  (*)
Wulfenite  (*)Zircon  (*)Zirconolite  (*)
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)2257149,571923419
Anatase  (*)Not in a structural groupTiO2184017201571552162
Anglesite  (*)BarytePb(SO4)18401720257155,571612734
Anorthite  (*)FeldsparCa(Al2Si2O8)1571491036
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O184017201571551272
Baddeleyite  (*)BaddeleyiteZrO2613587257149,57166238
Bariandite  (*)StraczekiteAl0.6(V5+,V4+)8O20·9H2O184017201571596
Baryte  (*)BaryteBa(SO4)2200587357159,57160,5716611547
Bassetite  (*)NoneFe2+(UO2)2(PO4)2(H2O)1018401720257155,5716051
Bornite  (*)NoneCu5FeS4220017201571605516
Brackebuschite  (*)BrackebuschitePb2Mn3+(VO4)2(OH)1840172015715915
Calcite  (*)CalciteCa(CO3)2200587257160,5716627770
Carnotite  (*)NoneK2(UO2)2(VO4)2·3H2O184017201571591184
Chalcopyrite  (*)ChalcopyriteCuFeS222001720457149,57155,57159,5716027198
Chernikovite  (*)Natroautunite(H3O)(UO2)(PO4)·3H2O1840172015715521
Chervetite  (*)NonePb2V5+2O722001720257159,571607
Chromite  (*)SpinelFe2+Cr2O4257149,571923902
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)8184017201571551756
Coffinite  (*)ZirconU(SiO4)·nH2O22001720357155,57159,57160566
Copper  (*)CopperCu220017201571603846
Corvusite  (*)Straczekite(Na,Ca,K)1-x(V5+,V4+,Fe2+)8O20·4H2O1840172015715979
Covellite  (*)CovelliteCuS220017201571604165
Crandallite  (*)AluniteCaAl3(PO4)(PO3OH)(OH)6613587157166310
Cryptomelane  (*)CoronaditeK(Mn4+7Mn3+)O16157164599
Curienite  (*)FritzscheitePb(UO2)2(VO4)2·5H2O18401720557156,57158,57159,57160,5716115
Dewindtite  (*)PhosphuranyliteH2Pb3(UO2)6O4(PO4)4·12H2O18401720257159,5716082
Diamond  (*)DiamondC157192697
Digenite  (*)DigeniteCu1.8S220017201571601027
Dolomite  (*)NoneCaMg(CO3)26135871571669895
Donbassite  (*)Clay ChloriteAl2(Si3Al)O10(OH)2·Al2.33(OH)618401720257155,5716116
Duttonite  (*)NoneV4+O(OH)222001720257159,571607
Fervanite  (*)NoneFe3+4V5+4O16·5H2O1840172015715910
Florencite-(Ce)  (*)AluniteCeAl3(PO4)2(OH)61840172015715573
Florencite-(La)  (*)AluniteLaAl3(PO4)2(OH)61840172015715512
Fluorapatite  (*)ApatiteCa5(PO4)3F220017201571602740
Forsterite  (*)OlivineMg2(SiO4)1571491188
Fourmarierite  (*)SchoepitePb1-xO3-2x(UO2)4(OH)4+2x·4H2O18401720257155,5716061
Francevillite  (*)FritzscheiteBa(UO2)2(VO4)2·5H2O18401720557156,57158,57159,57160,5716143
Françoisite-(Nd)  (*)NoneNd(UO2)3O(OH)(PO4)2·6H2O184017201571555
Galena  (*)RocksaltPbS22001720457155,57159,57160,5716124243
Goethite  (*)DiasporeFeO(OH)22005871157155,57159,57160,57166,57181,57182,57183,57184,57185,57186,571877437
Gold  (*)CopperAu6135871157153,57165,57167,57168,57169,57170,57172,57174,57180,57188,5719030554
Hematite  (*)CorundumFe2O322005871157147,57160,57166,57179,57181,57182,57183,57184,57185,57186,5718714640
Ilmenite  (*)CorundumFe2+Ti4+O32200587257160,571665433
Ilsemannite  (*)NoneMo3O8·nH2O (?)18401720157159123
Johannite  (*)JohanniteCu(UO2)2(SO4)2(OH)2·8H2O1840172015715969
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)41840587257155,571665591
Karelianite  (*)CorundumV2O322001720257159,5716017
Kasolite  (*)NonePb(UO2)(SiO4)·H2O18401720257159,57160198
Kutnohorite  (*)NoneCaMn2+(CO3)2157164234
Lead  (*)CopperPb22001720257155,57160192
Lenoblite  (*)NoneV4+2O4·2H2O184017201571595
Magnetite  (*)SpinelFe2+Fe3+2O46135871157147,57149,57166,57179,57181,57182,57183,57184,57185,57186,5718714899
Manganite  (*)RutileMn3+O(OH)157164770
Melanovanadite  (*)NoneCa(V5+,V4+)4O10·5H2O1840172015715920
Metavanuralite  (*)NoneAl(UO2)2(VO4)2(OH)·8H2O18401720257159,571604
Minium  (*)MiniumPb2+2Pb4+O422001720157160247
Molybdenite  (*)MolybdeniteMoS2220017201571605800
Monazite-(Ce)  (*)MonaziteCe(PO4)18401720157155945
Montroseite  (*)Diaspore(V3+,Fe2+,V4+)O(OH)22001720257159,57160136
Mottramite  (*)DescloizitePbCu(VO4)(OH)18401720157159362
Mounanaite  (*)NatrochalcitePbFe3+2(VO4)2(OH)2184017201571592
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)222001720457155,57160,57161,5717417380
Ningyoite  (*)Rhabdophane(U,Ca,Ce)2(PO4)2·1-2H2O1840172015715533
Nolanite  (*)NolaniteV3+8Fe3+2O14(OH)222001720257159,5716019
Pentlandite  (*)Pentlandite(Ni,Fe)9S81571491512
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)2613587257149,571662273
Pyrite  (*)PyriteFeS22200587657155,57159,57160,57164,57166,5717439462
Pyrolusite  (*)RutileMnO21571643106
Pyrrhotite  (*)NickelineFe7S8613587257149,571669056
Quartz  (*)QuartzSiO22200587757153,57155,57160,57166,57168,57174,5718261156
Rhodochrosite  (*)CalciteMn(CO3)1571641711
Roscoelite  (*)MicaKV3+2(Si3Al)O10(OH)222001720257159,57160253
Rutherfordine  (*)None(UO2)(CO3)1840172015716058
Schoepite  (*)Schoepite(UO2)4O(OH)6(H2O)61840172015715594
Schubnelite  (*)SchubneliteFe3+(V5+O4)·H2O184017201571594
Sperrylite  (*)PyritePtAs2157149337
Sphalerite  (*)SphaleriteZnS22001720257159,5716021482
Sudoite  (*)Chlorite ClayMg2Al3(Si3Al)O10(OH)82200172015716051
Talc  (*)Clay TalcMg3Si4O10(OH)21571923337
Thorite  (*)ZirconTh(SiO4)184017201571551006
Titanite  (*)TitaniteCaTi(SiO4)O220017201571604899
Torbernite  (*)NoneCu(UO2)2(PO4)2·12H2O18401720657155,57156,57158,57159,57160,571611059
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)21571492562
Uraninite  (*)FluoriteUO222001720657155,57156,57158,57159,57160,571612718
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O18401720157160890
Uranopilite  (*)None(UO2)6(SO4)O2(OH)6·14H2O18401720257155,5715994
Vanadinite  (*)ApatitePb5(VO4)3Cl18401720157159605
Vanuralite  (*)NoneAl(UO2)2(VO4)2(OH)·8.5H2O18401720257159,571603
Wölsendorfite  (*)WölsendorfitePb7(UO2)14O19(OH)4·12H2O1840172015716043
Wulfenite  (*)ScheelitePbMoO422001720257159,571601655
Zircon  (*)ZirconZr(SiO4)22001720357149,57155,571605251
Zirconolite  (*)Zirconolite(Ca,Y)Zr(Ti,Mg,Al)2O7157149140


Locality Notes from all Ages at Locality:
Age IDLocality Notes
Giersdorf_00000792The Oklo uranium deposit is found in the Franceville sediment. It is host to the only known natural nuclear fission reactor, spread across over a dozen mineral nodes in the shale of the Franceville sediment.
Jen_0000938MAGMATIC STYLE: Plug. ASSOCIATED SILICATE ROCKS: Leucocratic and melanocratic peralkaline syenites, fenite and dykes of trachyte, carbonated lamprophyre and quartz-barite rock.


5 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
sedcu-00427115115Cretaceous, L.Aptian       Cu228185N'Toum, Estuaire Province, GabonN' ToumCox et al. (2003) USGSOFR03_107 
Giersdorf_00000792184017201780±60U-PbIndirect arguments may, however, put limits on the reactor age: (1) If the age is older than 1.78 b.y., the reactor would have run before the formation of the Franceville series. If this is true, it is almost impossible to explain the fact that the Oklo o    UraniniteU1749Oklo Mine, Franceville, Haut-Ogooué Province, GabonOklo MineLancelot et al. (1975)10.1016/0012-821X(75)90195-8EPSL25_189The sampled uranium minerals were drawn from zones outside of the reactor area in the Oklo deposit. Samples with too low a U concentration were additionally discarded. The age was compiled from many samples all intersecting on a concordia diagram, to the left or the right of the concordia line, and is also in agreement with the another author's Rb-Sr age for the Franceville sediment, as well as another's K-Ar age for a tuff in the Franceville deposit.
Giersdorf_00000821220022002200      Coffinite, Uraninite 1749Oklo Mine, Franceville, Haut-Ogooué Province, GabonOklo MinePearcy et al. (1994)10.1016/0883-2927(94)90030-2AG9_713Age is given in comparison to the Nopal deposit due to its similarity as a natural analogue to nuclear waste disposal systems
Jen_0000938613587600±13K-Ar highphlogopite   Phlogopite  195918Mabounie Nb Prospect, Moyen-Ogooué Province, GabonMabouniéWoolley and Kjarsgaard (2008)10.4095/225115GSCOF5796 
ree-003501000541Late Proterozoic        195918Mabounie Nb Prospect, Moyen-Ogooué Province, GabonMabounieOrris and Grauch (2002) USGSOFR02_189 

SampleSource LocalityReference URL
R080096Franceville, Haut-Ogooué Province, Gabonhttps://rruff.info/R080096
R060602Mounana Mine (Mouana Mine), Franceville, Haut-Ogooué Province, Gabonhttps://rruff.info/R060602
R050548Mounana Mine (Mouana Mine), Franceville, Haut-Ogooué Province, Gabonhttps://rruff.info/R050548
R070159Mounana Mine (Mouana Mine), Franceville, Haut-Ogooué Province, Gabonhttps://rruff.info/R070159
R050544Mounana Mine (Mouana Mine), Franceville, Haut-Ogooué Province, Gabonhttps://rruff.info/R050544

All locality data graciously provided by mindat.org

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