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:
Kombat, Grootfontein, Otjozondjupa Region, Namibia

Oldest recorded age at locality: 601
Youngest recorded age at locality: 537

mindat Locality ID: 235838
mindat URL: http://www.mindat.org/loc-235838.html

Tectonic Settings:

Total number of sublocalities beneath "Kombat, Grootfontein, Otjozondjupa Region, Namibia": 8
Total number of bottom-level sublocalities: 4

Number of Child Localities: 2
Child Localities:
Asis
Kombat Mine (Klein Otavi; Asis)

Latitude: 19°42'25"S
Longitude: 17°43'30"E
Decimal Degree (lat, lon): -19.706944444444,17.725
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 As B Ba Be C Ca Ce Cl Cr Cu F Fe Ge H K Li Mg Mn Mo Na O P Pb REE S Si Sn V Zn Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AdeliteAllophaneAmphiboleApatiteAragoniteArsenopyriteAsisiteBaryteBastnäsiteBrochantite
BruciteCalciteCancrinite-sodaliteChalcopyriteClayClinozoisiteCopperCoronaditeCorundumCovellite
DescloiziteDigeniteEnargiteEpidoteFeldsparFluoriteGarnetGermaniteGypsumHarkerite
HematoliteHereroiteHumiteKaoliniteMalachiteMicaMolybdeniteMolybdophylliteMonaziteNone
Not in a structural groupOlivinePectolitePerovskitePyritePyrophyllitePyroxeneQuartzRhodoniteRocksalt
RutileScheeliteSodaliteSphaleriteSpinelTalcTetrahedriteVesuvianiteWurtziteWöhlerite
Zircon

128 IMA Minerals at location:
Actinolite  (*)Aegirine  (*)Albite  (*)Alleghanyite  (*)Anglesite  (*)
Anhydrite  (*)Aragonite  (*)Arsenopyrite  (*)Asisite  (*)Azurite  (*)
Barysilite  (*)Baryte  (*)Bastnäsite-(Ce)  (*)Bayldonite  (*)Betekhtinite  (*)
Bornite  (*)Britvinite  (*)Brochantite  (*)Brucite  (*)Brushite  (*)
Cahnite  (*)Calcite  (*)Carlfrancisite  (*)Cassiterite  (*)Cerussite  (*)
Chalcocite  (*)Chalcopyrite  (*)Chrysocolla  (*)Clinozoisite  (*)Colusite  (*)
Copper  (*)Coronadite  (*)Covellite  (*)Crednerite  (*)Crocoite  (*)
Cuprite  (*)Cuspidine  (*)Damaraite  (*)Defernite  (*)Digenite  (*)
Dioptase  (*)Dolomite  (*)Duftite  (*)Enargite  (*)Epidote  (*)
Erikjonssonite  (*)Fluorite  (*)Galaxite  (*)Galena  (*)Ganophyllite  (*)
Glaucochroite  (*)Grootfonteinite  (*)Gypsum  (*)Harkerite  (*)Hausmannite  (*)
Hedyphane  (*)Helvine  (*)Hematite  (*)Hematophanite  (*)Hereroite  (*)
Hillebrandite  (*)Holdawayite  (*)Hollandite  (*)Hydroxylapatite  (*)Jacobsite  (*)
Jaffeite  (*)Janchevite  (*)Jerrygibbsite  (*)Johninnesite  (*)Kaolinite  (*)
Kentrolite  (*)Kombatite  (*)Kutnohorite  (*)Lautite  (*)Lead  (*)
Leadhillite  (*)Leucophoenicite  (*)Magnetite  (*)Malachite  (*)Manganberzeliite  (*)
Manganite  (*)Manganosite  (*)Melanotekite  (*)Microcline  (*)Milanriederite  (*)
Mimetite  (*)Molybdenite  (*)Molybdophyllite  (*)Monazite-(Ce)  (*)Mottramite  (*)
Muscovite  (*)Nambulite  (*)Natronambulite  (*)Orthoclase  (*)Phlogopite  (*)
Pyrite  (*)Pyrobelonite  (*)Pyrochroite  (*)Pyrolusite  (*)Pyromorphite  (*)
Pyrophyllite  (*)Quartz  (*)Renierite  (*)Rhodochrosite  (*)Rhodonite  (*)
Ribbeite  (*)Richterite  (*)Roymillerite  (*)Sahlinite  (*)Sakhaite  (*)
Serandite  (*)Siderite  (*)Silver  (*)Smithsonite  (*)Spessartine  (*)
Sphalerite  (*)Sussexite  (*)Talc  (*)Tennantite-(Fe)  (*)Tephroite  (*)
Vaterite  (*)Vesuvianite  (*)Vladkrivovichevite  (*)Wiserite  (*)Witherite  (*)
Wulfenite  (*)Yangite  (*)Zircon  (*)
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)26015371869373419
Aegirine  (*)PyroxeneNaFe3+Si2O66015371869371022
Albite  (*)FeldsparNa(AlSi3O8)6015371869378803
Alleghanyite  (*)HumiteMn2+5(SiO4)2(OH)260153718693777
Anglesite  (*)BarytePb(SO4)6015371869372734
Anhydrite  (*)Not in a structural groupCa(SO4)6015371869371588
Aragonite  (*)AragoniteCa(CO3)6015371869373250
Arsenopyrite  (*)ArsenopyriteFeAsS6015371869379052
Asisite  (*)AsisitePb7SiO8Cl26015371869371
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)26015371869375509
Barysilite  (*)NonePb8Mn(Si2O7)36015371869379
Baryte  (*)BaryteBa(SO4)601537286937,8693811547
Bastnäsite-(Ce)  (*)BastnäsiteCe(CO3)F601537186937304
Bayldonite  (*)NoneCu3PbO(AsO3OH)2(OH)2601537186937172
Betekhtinite  (*)None(Cu,Fe)21Pb2S1560153718693745
Bornite  (*)NoneCu5FeS46015371869375516
Britvinite  (*)MolybdophyllitePb14Mg9(Si10O28)(BO3)4(CO3)2(OH)12F26015371869372
Brochantite  (*)BrochantiteCu4(SO4)(OH)66015371869371633
Brucite  (*)BruciteMg(OH)2601537186937462
Brushite  (*)GypsumCa(PO3OH)·2H2O601537186937104
Cahnite  (*)ZirconCa2B(AsO4)(OH)460153718693713
Calcite  (*)CalciteCa(CO3)601537286937,8693827770
Carlfrancisite  (*)HematoliteMn2+3(Mn2+,Mg,Fe3+,Al)42(As3+O3)2(As5+O4)4[(Si,As5+)O4]6[(As5+,Si)O4]2(OH)426015371869401
Cassiterite  (*)RutileSnO26015371869375171
Cerussite  (*)AragonitePb(CO3)6015371869374979
Chalcocite  (*)NoneCu2S6015371869375707
Chalcopyrite  (*)ChalcopyriteCuFeS260153718693727198
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O6015371869373531
Clinozoisite  (*)Clinozoisite EpidoteCa2Al3[Si2O7][SiO4]O(OH)6015371869371025
Colusite  (*)Sphalerite GermaniteCu13VAs3S16601537186937110
Copper  (*)CopperCu601537286937,869383846
Coronadite  (*)CoronaditePb(Mn4+6Mn3+2)O16601537186937227
Covellite  (*)CovelliteCuS6015371869374165
Crednerite  (*)NoneCuMnO260153718693735
Crocoite  (*)Monazite BarytePb(CrO4)60153718693781
Cuprite  (*)Not in a structural groupCu2O6015371869372970
Cuspidine  (*)WöhleriteCa8(Si2O7)2F460153718693767
Damaraite  (*)NonePb3O2(OH)Cl6015371869382
Defernite  (*)NoneCa6(CO3)1.58(Si2O7)0.21(OH)7[Cl0.50(OH)0.08(H2O)0.42]6015371869372
Digenite  (*)DigeniteCu1.8S6015371869371027
Dioptase  (*)NoneCuSiO3·H2O601537186937164
Dolomite  (*)NoneCaMg(CO3)26015371869379895
Duftite  (*)AdelitePbCu(AsO4)(OH)601537186937220
Enargite  (*)Enargite WurtziteCu3AsS4601537186937910
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)6015371869378173
Erikjonssonite  (*)Hereroite(Pb32O21)[(V,Si,Mo,As)O4]4Cl96015371869371
Fluorite  (*)FluoriteCaF26015371869379617
Galaxite  (*)SpinelMn2+Al2O460153718693743
Galena  (*)RocksaltPbS60153718693724243
Ganophyllite  (*)Clay(K,Na)xMn2+6(Si,Al)10O24(OH)4·nH2O (x = 1-2; n = 7-11)60153718693745
Glaucochroite  (*)OlivineCaMn2+(SiO4)6015371869377
Grootfonteinite  (*)NonePb3O(CO3)26015371869371
Gypsum  (*)GypsumCa(SO4)·2H2O6015371869376890
Harkerite  (*)HarkeriteCa48Mg16[AlSi4O15(OH)]4(BO3)16(CO3)16·2(H2O,HCl)60153718693711
Hausmannite  (*)SpinelMn2+Mn3+2O4601537286937,86938350
Hedyphane  (*)ApatiteCa2Pb3(AsO4)3Cl60153718693748
Helvine  (*)Sodalite Cancrinite-sodaliteBe3Mn2+4(SiO4)3S601537186937237
Hematite  (*)CorundumFe2O360153718693714640
Hematophanite  (*)PerovskitePb4Fe3+3O8(Cl,OH)601537286937,869383
Hereroite  (*)Hereroite[Pb32(O,   )21](AsO4)2[(Si,As,V,Mo)O4]2Cl106015371869371
Hillebrandite  (*)NoneCa2SiO3(OH)260153718693717
Holdawayite  (*)NoneMn2+6(CO3)2(OH)7(Cl,OH)6015371869373
Hollandite  (*)CoronaditeBa(Mn4+6Mn3+2)O16601537186937243
Hydroxylapatite  (*)ApatiteCa5(PO4)3OH601537186937367
Jacobsite  (*)SpinelMn2+Fe3+2O4601537286937,86938172
Jaffeite  (*)NoneCa6Si2O7(OH)66015371869372
Janchevite  (*)AsisitePb7V5+(O8.5   0.5)Cl26015371869371
Jerrygibbsite  (*)HumiteMn2+9(SiO4)4(OH)26015371869373
Johninnesite  (*)NoneNa2Mn2+9Mg7(AsO4)2(Si6O17)2(OH)86015371869372
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)46015371869375591
Kentrolite  (*)NonePb2Mn3+2O2(Si2O7)60153718693722
Kombatite  (*)NonePb14O9(VO4)2Cl46015371869372
Kutnohorite  (*)NoneCaMn2+(CO3)2601537186937234
Lautite  (*)NoneCuAsS60153718693732
Lead  (*)CopperPb601537186937192
Leadhillite  (*)NonePb4(SO4)(CO3)2(OH)2601537186937265
Leucophoenicite  (*)HumiteMn2+7(SiO4)3(OH)260153718693710
Magnetite  (*)SpinelFe2+Fe3+2O460153718693714899
Malachite  (*)MalachiteCu2(CO3)(OH)260153718693712537
Manganberzeliite  (*)Garnet(NaCa2)Mn2+2(AsO4)360153718693724
Manganite  (*)RutileMn3+O(OH)601537186937770
Manganosite  (*)RocksaltMnO60153718693773
Melanotekite  (*)NonePb2Fe3+2O2(Si2O7)60153718693722
Microcline  (*)FeldsparK(AlSi3O8)6015371869374924
Milanriederite  (*)Vesuvianite(Ca,REE)19Fe3+Al4(Mg,Al,Fe3+)8Si18O68(OH,O)106015371869371
Mimetite  (*)ApatitePb5(AsO4)3Cl6015371869371107
Molybdenite  (*)MolybdeniteMoS26015371869375800
Molybdophyllite  (*)MolybdophyllitePb8Mg9[Si10O28(OH)8O2(CO3)3]·H2O6015371869373
Monazite-(Ce)  (*)MonaziteCe(PO4)601537186937945
Mottramite  (*)DescloizitePbCu(VO4)(OH)601537186937362
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)260153718693717380
Nambulite  (*)RhodoniteLiMn2+4Si5O14(OH)60153718693712
Natronambulite  (*)RhodoniteNaMn2+4Si5O14(OH)6015371869377
Orthoclase  (*)FeldsparK(AlSi3O8)6015371869372349
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)26015371869372273
Pyrite  (*)PyriteFeS260153718693739462
Pyrobelonite  (*)DescloizitePbMn2+VO4(OH)60153718693721
Pyrochroite  (*)BruciteMn2+(OH)260153718693756
Pyrolusite  (*)RutileMnO26015371869373106
Pyromorphite  (*)ApatitePb5(PO4)3Cl6015371869371725
Pyrophyllite  (*)Clay PyrophylliteAl2Si4O10(OH)2601537186937771
Quartz  (*)QuartzSiO260153718693761156
Renierite  (*)Sphalerite Germanite(Cu1+,Zn)11Fe4(Ge4+,As5+)2S1660153718693737
Rhodochrosite  (*)CalciteMn(CO3)6015371869371711
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)601537186937969
Ribbeite  (*)HumiteMn2+5(SiO4)2(OH)260153718693713
Richterite  (*)AmphiboleNa(NaCa)Mg5Si8O22(OH)2601537186937148
Roymillerite  (*)MolybdophyllitePb24Mg9(Si10O28)(CO3)10(BO3)(SiO4)(OH)13O56015371869371
Sahlinite  (*)NonePb14O9(AsO4)2Cl46015371869374
Sakhaite  (*)HarkeriteCa48Mg16(BO3)32(CO3)16·2(H2O,HCl)6015371869377
Serandite  (*)PectoliteNaMn2+2Si3O8(OH)60153718693738
Siderite  (*)CalciteFe(CO3)6015371869376417
Silver  (*)CopperAg6015371869375186
Smithsonite  (*)CalciteZn(CO3)6015371869372473
Spessartine  (*)GarnetMn2+3Al2(SiO4)36015371869371214
Sphalerite  (*)SphaleriteZnS60153718693721482
Sussexite  (*)NoneMn2+BO2(OH)60153718693725
Talc  (*)Clay TalcMg3Si4O10(OH)26015371869373337
Tennantite-(Fe)  (*)TetrahedriteCu6(Cu4Fe2)As4S136015371869371803
Tephroite  (*)OlivineMn2+2(SiO4)601537186937240
Vaterite  (*)NoneCa(CO3)60153718693737
Vesuvianite  (*)Vesuvianite(Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)106015371869371395
Vladkrivovichevite  (*)Not in a structural group[Pb32O18][Pb4Mn2O]Cl14(BO3)8·2H2O6015371869371
Wiserite  (*)NoneMn2+14(B2O5)4(OH)8·(Si,Mg)(O,OH)4Cl60153718693715
Witherite  (*)AragoniteBa(CO3)601537186937251
Wulfenite  (*)ScheelitePbMoO46015371869371655
Yangite  (*)Not in a structural groupPbMnSi3O8·H2O6015371869371
Zircon  (*)ZirconZr(SiO4)6015371869375251


2 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
CGSN10_99-Kombat600600   high      235838Kombat, Grootfontein, Otjozondjupa Region, NamibiaKombatDeane (1995) CGSN10_99best estimate for mineralization age
sedznpb-00339601537570±31 – 554±17        2427Kombat Mine (Klein Otavi; Asis), Kombat, Grootfontein, Otjozondjupa Region, NamibiaKombatSinger et al. (2009) USGSOFR2009-1252 

SampleSource LocalityReference URL
R090029Kombat, Grootfontein, Otjozondjupa Region, Namibiahttps://rruff.info/R090029
R090032Kombat, Grootfontein, Otjozondjupa Region, Namibiahttps://rruff.info/R090032
R090031Kombat, Grootfontein, Otjozondjupa Region, Namibiahttps://rruff.info/R090031
R070635Kombat Mine (Klein Otavi; Asis), Kombat, Grootfontein, Otjozondjupa Region, Namibiahttps://rruff.info/R070635
R070651Kombat Mine (Klein Otavi; Asis), Kombat, Grootfontein, Otjozondjupa Region, Namibiahttps://rruff.info/R070651
R070639Kombat Mine (Klein Otavi; Asis), Kombat, Grootfontein, Otjozondjupa Region, Namibiahttps://rruff.info/R070639
R060619Kombat Mine (Klein Otavi; Asis), Kombat, Grootfontein, Otjozondjupa Region, Namibiahttps://rruff.info/R060619
R070638Kombat Mine (Klein Otavi; Asis), Kombat, Grootfontein, Otjozondjupa Region, Namibiahttps://rruff.info/R070638
R070719Kombat Mine (Klein Otavi; Asis), Kombat, Grootfontein, Otjozondjupa Region, Namibiahttps://rruff.info/R070719
R100042Kombat Mine (Klein Otavi; Asis), Kombat, Grootfontein, Otjozondjupa Region, Namibiahttps://rruff.info/R100042
R060249Kombat Mine (Klein Otavi; Asis), Kombat, Grootfontein, Otjozondjupa Region, Namibiahttps://rruff.info/R060249
R070720Kombat Mine (Klein Otavi; Asis), Kombat, Grootfontein, Otjozondjupa Region, Namibiahttps://rruff.info/R070720
R060616Kombat Mine (Klein Otavi; Asis), Kombat, Grootfontein, Otjozondjupa Region, Namibiahttps://rruff.info/R060616
R140497Kombat Mine (Klein Otavi; Asis), Kombat, Grootfontein, Otjozondjupa Region, Namibiahttps://rruff.info/R140497
R130122Kombat Mine (Klein Otavi; Asis), Kombat, Grootfontein, Otjozondjupa Region, Namibiahttps://rruff.info/R130122

All locality data graciously provided by mindat.org

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