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:
Grootfontein, Otjozondjupa Region, Namibia

Oldest recorded age at locality: 750
Youngest recorded age at locality: 537

mindat Locality ID: 2412
mindat URL: http://www.mindat.org/loc-2412.html

Tectonic Settings:

Total number of sublocalities beneath "Grootfontein, Otjozondjupa Region, Namibia": 24
Total number of bottom-level sublocalities: 17

Number of Child Localities: 10
Child Localities:
Abenab Mine
Abenab West Mine
Baobab Cave
Berg Aukas Mine (Berg Aukus Mine)
Guchab-Rodgerberg Area
Hoba Meteorite
Kombat
Kupferberg Mine
Okarundu
Olifantsfontein 9 (Annshope)

Latitude: 19°26'4"S
Longitude: 17°59'6"E
Decimal Degree (lat, lon): -19.434444444444,17.985
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 Cd Ce Cl Cr Cu F Fe Ge H K Li Mg Mn Mo Na Ni O P Pb REE S Sb Si Sn Ti V Zn Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AdeliteAllophaneAluniteAmphiboleApatiteAragoniteArcaniteArsenopyriteAsisiteBaryte
BastnäsiteBournoniteBrochantiteBruciteCalciteCancrinite-sodaliteChalcopyriteClayClinozoisiteCopper
CoronaditeCorundumCovelliteDescloiziteDiasporeDigeniteEnargiteEpidoteFeldsparFluorite
GarnetGeocroniteGermaniteGypsumHarkeriteHematoliteHereroiteHumiteIronKaolinite
LinariteMalachiteMicaMiniumMolybdeniteMolybdophylliteMonaziteNoneNot in a structural groupOlivine
PectolitePerovskitePhenakitePlancheitePyritePyrophyllitePyroxeneQuartzRhodoniteRocksalt
RutileScheeliteSmectite-vermiculiteSodaliteSphaleriteSpinelTalcTetrahedriteTourmalineVesuvianite
WurtziteWöhleriteZircon

160 IMA Minerals at location:
Actinolite  (*)Aegirine  (*)Albite  (*)Alleghanyite  (*)Anatase  (*)
Anglesite  (*)Anhydrite  (*)Aragonite  (*)Arcanite  (*)Ardealite  (*)
Arsenopyrite  (*)Asisite  (*)Austinite  (*)Azurite  (*)Barysilite  (*)
Baryte  (*)Bastnäsite-(Ce)  (*)Bayldonite  (*)Betekhtinite  (*)Beudantite  (*)
Bornite  (*)Boulangerite  (*)Bournonite  (*)Britvinite  (*)Brochantite  (*)
Brucite  (*)Brushite  (*)Cahnite  (*)Calcite  (*)Carlfrancisite  (*)
Cassiterite  (*)Cerussite  (*)Chalcocite  (*)Chalcopyrite  (*)Chrysocolla  (*)
Clinozoisite  (*)Colusite  (*)Conichalcite  (*)Copper  (*)Coronadite  (*)
Covellite  (*)Crednerite  (*)Crocoite  (*)Cuprite  (*)Cuspidine  (*)
Damaraite  (*)Daubréelite  (*)Defernite  (*)Descloizite  (*)Digenite  (*)
Dioptase  (*)Dolomite  (*)Duftite  (*)Enargite  (*)Epidote  (*)
Erikjonssonite  (*)Fluorite  (*)Galaxite  (*)Galena  (*)Ganophyllite  (*)
Glaucochroite  (*)Goethite  (*)Greenockite  (*)Grootfonteinite  (*)Gypsum  (*)
Harkerite  (*)Hausmannite  (*)Hedyphane  (*)Helvine  (*)Hematite  (*)
Hematophanite  (*)Hemimorphite  (*)Hereroite  (*)Hillebrandite  (*)Holdawayite  (*)
Hollandite  (*)Hydroxylapatite  (*)Iron  (*)Jacobsite  (*)Jaffeite  (*)
Janchevite  (*)Jerrygibbsite  (*)Johninnesite  (*)Jordanite  (*)Kaolinite  (*)
Kentrolite  (*)Kombatite  (*)Kutnohorite  (*)Kyanite  (*)Lautite  (*)
Lead  (*)Leadhillite  (*)Leucophoenicite  (*)Linarite  (*)Magnetite  (*)
Malachite  (*)Manganberzeliite  (*)Manganite  (*)Manganosite  (*)Melanotekite  (*)
Microcline  (*)Milanriederite  (*)Mimetite  (*)Minium  (*)Molybdenite  (*)
Molybdophyllite  (*)Monazite-(Ce)  (*)Montmorillonite  (*)Mottramite  (*)Muscovite  (*)
Nambulite  (*)Natrojarosite  (*)Natronambulite  (*)Orthoclase  (*)Phlogopite  (*)
Plancheite  (*)Pyrite  (*)Pyrobelonite  (*)Pyrochroite  (*)Pyrolusite  (*)
Pyromorphite  (*)Pyrophyllite  (*)Quartz  (*)Renierite  (*)Rhodochrosite  (*)
Rhodonite  (*)Ribbeite  (*)Richterite  (*)Rosasite  (*)Roymillerite  (*)
Rutile  (*)Sahlinite  (*)Sakhaite  (*)Schorl  (*)Schreibersite  (*)
Serandite  (*)Siderite  (*)Silver  (*)Smithsonite  (*)Spessartine  (*)
Sphalerite  (*)Sussexite  (*)Taenite  (*)Talc  (*)Tangeite  (*)
Tennantite-(Fe)  (*)Tephroite  (*)Tetrahedrite-(Zn)  (*)Troilite  (*)Vanadinite  (*)
Vaterite  (*)Vésigniéite  (*)Vesuvianite  (*)Vladkrivovichevite  (*)Willemite  (*)
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
Anatase  (*)Not in a structural groupTiO2286924,869252162
Anglesite  (*)BarytePb(SO4)750537486924,86925,86927,869372734
Anhydrite  (*)Not in a structural groupCa(SO4)6015371869371588
Aragonite  (*)AragoniteCa(CO3)750537286927,869373250
Arcanite  (*)ArcaniteK2(SO4)18692630
Ardealite  (*)GypsumCa2(PO3OH)(SO4)·4H2O18692630
Arsenopyrite  (*)ArsenopyriteFeAsS6015371869379052
Asisite  (*)AsisitePb7SiO8Cl26015371869371
Austinite  (*)AdeliteCaZn(AsO4)(OH)286928,8692971
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)2601537286928,869375509
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
Beudantite  (*)AlunitePbFe3+3(AsO4)(SO4)(OH)6750750186927413
Bornite  (*)NoneCu5FeS4601537286937,869415516
Boulangerite  (*)NonePb5Sb4S11750750186927843
Bournonite  (*)BournoniteCuPbSbS3286924,869251089
Britvinite  (*)MolybdophyllitePb14Mg9(Si10O28)(BO3)4(CO3)2(OH)12F26015371869372
Brochantite  (*)BrochantiteCu4(SO4)(OH)6601537286928,869371633
Brucite  (*)BruciteMg(OH)2601537186937462
Brushite  (*)GypsumCa(PO3OH)·2H2O601537186937104
Cahnite  (*)ZirconCa2B(AsO4)(OH)460153718693713
Calcite  (*)CalciteCa(CO3)750537886924,86925,86927,86928,86930,86937,86938,8694127770
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)750537586924,86925,86927,86937,869414979
Chalcocite  (*)NoneCu2S750537586924,86927,86928,86937,869415707
Chalcopyrite  (*)ChalcopyriteCuFeS2750537586924,86927,86928,86937,8694127198
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O750537286927,869373531
Clinozoisite  (*)Clinozoisite EpidoteCa2Al3[Si2O7][SiO4]O(OH)6015371869371025
Colusite  (*)Sphalerite GermaniteCu13VAs3S16601537186937110
Conichalcite  (*)AdeliteCaCu(AsO4)(OH)386928,86930,86941363
Copper  (*)CopperCu601537286937,869383846
Coronadite  (*)CoronaditePb(Mn4+6Mn3+2)O16601537186937227
Covellite  (*)CovelliteCuS750537686924,86925,86927,86928,86937,869414165
Crednerite  (*)NoneCuMnO260153718693735
Crocoite  (*)Monazite BarytePb(CrO4)60153718693781
Cuprite  (*)Not in a structural groupCu2O601537286928,869372970
Cuspidine  (*)WöhleriteCa8(Si2O7)2F460153718693767
Damaraite  (*)NonePb3O2(OH)Cl6015371869382
Daubréelite  (*)SpinelFeCr2S4186931157
Defernite  (*)NoneCa6(CO3)1.58(Si2O7)0.21(OH)7[Cl0.50(OH)0.08(H2O)0.42]6015371869372
Descloizite  (*)DescloizitePbZn(VO4)(OH)750750986924,86925,86927,86928,86941,86942,86945,86946,86947378
Digenite  (*)DigeniteCu1.8S601537286937,869411027
Dioptase  (*)NoneCuSiO3·H2O601537486928,86930,86937,86941164
Dolomite  (*)NoneCaMg(CO3)2750537486924,86925,86927,869379895
Duftite  (*)AdelitePbCu(AsO4)(OH)601537286937,86941220
Enargite  (*)Enargite WurtziteCu3AsS4750537586924,86925,86927,86937,86941910
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)601537386924,86925,869378173
Erikjonssonite  (*)Hereroite(Pb32O21)[(V,Si,Mo,As)O4]4Cl96015371869371
Fluorite  (*)FluoriteCaF26015371869379617
Galaxite  (*)SpinelMn2+Al2O460153718693743
Galena  (*)RocksaltPbS750537586924,86925,86927,86937,8694124243
Ganophyllite  (*)Clay(K,Na)xMn2+6(Si,Al)10O24(OH)4·nH2O (x = 1-2; n = 7-11)60153718693745
Glaucochroite  (*)OlivineCaMn2+(SiO4)6015371869377
Goethite  (*)DiasporeFeO(OH)750750386924,86925,869277437
Greenockite  (*)WurtziteCdS750750386924,86925,86927717
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  (*)CorundumFe2O3750537486924,86925,86927,8693714640
Hematophanite  (*)PerovskitePb4Fe3+3O8(Cl,OH)601537286937,869383
Hemimorphite  (*)Not in a structural groupZn4(Si2O7)(OH)2·H2O1869251689
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
Iron  (*)IronFe1869311089
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
Jordanite  (*)GeocronitePb14As6S23750750486924,86925,86927,86941105
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)4601537386924,86925,869375591
Kentrolite  (*)NonePb2Mn3+2O2(Si2O7)60153718693722
Kombatite  (*)NonePb14O9(VO4)2Cl46015371869372
Kutnohorite  (*)NoneCaMn2+(CO3)2601537186937234
Kyanite  (*)Not in a structural groupAl2OSiO4286924,869251507
Lautite  (*)NoneCuAsS60153718693732
Lead  (*)CopperPb601537186937192
Leadhillite  (*)NonePb4(SO4)(CO3)2(OH)2750537286927,86937265
Leucophoenicite  (*)HumiteMn2+7(SiO4)3(OH)260153718693710
Linarite  (*)LinariteCuPb(SO4)(OH)2186924987
Magnetite  (*)SpinelFe2+Fe3+2O4601537386924,86925,8693714899
Malachite  (*)MalachiteCu2(CO3)(OH)2750537686924,86925,86927,86928,86937,8694112537
Manganberzeliite  (*)Garnet(NaCa2)Mn2+2(AsO4)360153718693724
Manganite  (*)RutileMn3+O(OH)601537186937770
Manganosite  (*)RocksaltMnO60153718693773
Melanotekite  (*)NonePb2Fe3+2O2(Si2O7)60153718693722
Microcline  (*)FeldsparK(AlSi3O8)601537386924,86925,869374924
Milanriederite  (*)Vesuvianite(Ca,REE)19Fe3+Al4(Mg,Al,Fe3+)8Si18O68(OH,O)106015371869371
Mimetite  (*)ApatitePb5(AsO4)3Cl750537586924,86925,86927,86928,869371107
Minium  (*)MiniumPb2+2Pb4+O4750750286925,86927247
Molybdenite  (*)MolybdeniteMoS26015371869375800
Molybdophyllite  (*)MolybdophyllitePb8Mg9[Si10O28(OH)8O2(CO3)3]·H2O6015371869373
Monazite-(Ce)  (*)MonaziteCe(PO4)601537186937945
Montmorillonite  (*)Clay Smectite-vermiculite(Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O286924,869251508
Mottramite  (*)DescloizitePbCu(VO4)(OH)750537586927,86937,86941,86944,86945362
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2601537386924,86925,8693717380
Nambulite  (*)RhodoniteLiMn2+4Si5O14(OH)60153718693712
Natrojarosite  (*)AluniteNaFe3+3(SO4)2(OH)6750750186927254
Natronambulite  (*)RhodoniteNaMn2+4Si5O14(OH)6015371869377
Orthoclase  (*)FeldsparK(AlSi3O8)6015371869372349
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)26015371869372273
Plancheite  (*)PlancheiteCu8(Si4O11)2(OH)4·H2O286928,8694174
Pyrite  (*)PyriteFeS2750537486924,86927,86937,8694139462
Pyrobelonite  (*)DescloizitePbMn2+VO4(OH)60153718693721
Pyrochroite  (*)BruciteMn2+(OH)260153718693756
Pyrolusite  (*)RutileMnO26015371869373106
Pyromorphite  (*)ApatitePb5(PO4)3Cl750537286927,869371725
Pyrophyllite  (*)Clay PyrophylliteAl2Si4O10(OH)2601537186937771
Quartz  (*)QuartzSiO2750537686924,86925,86927,86928,86930,8693761156
Renierite  (*)Sphalerite Germanite(Cu1+,Zn)11Fe4(Ge4+,As5+)2S16750537286927,8693737
Rhodochrosite  (*)CalciteMn(CO3)750537286927,869371711
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)601537186937969
Ribbeite  (*)HumiteMn2+5(SiO4)2(OH)260153718693713
Richterite  (*)AmphiboleNa(NaCa)Mg5Si8O22(OH)2601537186937148
Rosasite  (*)MalachiteCuZn(CO3)(OH)2750750186927454
Roymillerite  (*)MolybdophyllitePb24Mg9(Si10O28)(CO3)10(BO3)(SiO4)(OH)13O56015371869371
Rutile  (*)RutileTiO2286924,869255614
Sahlinite  (*)NonePb14O9(AsO4)2Cl46015371869374
Sakhaite  (*)HarkeriteCa48Mg16(BO3)32(CO3)16·2(H2O,HCl)6015371869377
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)1869252705
Schreibersite  (*)None(Fe,Ni)3P186931374
Serandite  (*)PectoliteNaMn2+2Si3O8(OH)60153718693738
Siderite  (*)CalciteFe(CO3)6015371869376417
Silver  (*)CopperAg6015371869375186
Smithsonite  (*)CalciteZn(CO3)750537786924,86925,86927,86937,86941,86945,869472473
Spessartine  (*)GarnetMn2+3Al2(SiO4)36015371869371214
Sphalerite  (*)SphaleriteZnS750537586924,86925,86927,86937,8694121482
Sussexite  (*)NoneMn2+BO2(OH)60153718693725
Taenite  (*)None(Ni,Fe)186931703
Talc  (*)Clay TalcMg3Si4O10(OH)26015371869373337
Tangeite  (*)AdeliteCaCu(VO4)(OH)75075018692760
Tennantite-(Fe)  (*)TetrahedriteCu6(Cu4Fe2)As4S13750537586924,86925,86927,86937,869411803
Tephroite  (*)OlivineMn2+2(SiO4)601537186937240
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S13750750386924,86925,869275317
Troilite  (*)NoneFeS1869311044
Vanadinite  (*)ApatitePb5(VO4)3Cl750750486924,86925,86927,86942605
Vaterite  (*)NoneCa(CO3)60153718693737
Vésigniéite  (*)NoneCu3Ba(VO4)2(OH)275075018692746
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
Willemite  (*)PhenakiteZn2SiO4750750486924,86925,86927,86928303
Wiserite  (*)NoneMn2+14(B2O5)4(OH)8·(Si,Mg)(O,OH)4Cl60153718693715
Witherite  (*)AragoniteBa(CO3)601537186937251
Wulfenite  (*)ScheelitePbMoO4601537486924,86925,86928,869371655
Yangite  (*)Not in a structural groupPbMnSi3O8·H2O6015371869371
Zircon  (*)ZirconZr(SiO4)601537286924,869375251


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
sedexmvt-00186750750750 Ma (geological relations)geological relations       2424Berg Aukas Mine (Berg Aukus Mine), Grootfontein, Otjozondjupa Region, NamibiaBerg AukasTaylor et al. (2009) USGSOFR2009_1297 
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
R050509Grootfontein, Otjozondjupa Region, Namibiahttps://rruff.info/R050509
R050037Berg Aukas Mine (Berg Aukus Mine), Grootfontein, Otjozondjupa Region, Namibiahttps://rruff.info/R050037
R040051Berg Aukas Mine (Berg Aukus Mine), Grootfontein, Otjozondjupa Region, Namibiahttps://rruff.info/R040051
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

All age data...

Other copyright data...