Mineral name Structural Groups IMA Formula Max Age (Ma) Min Age (Ma) # of Sublocalities containing mineral LOCALITY IDs, not mindat ids # of localities containing mineral Actinolite (*) Amphibole Ca2 (Mg4.5-2.5 Fe2+ 0.5-2.5 )Si8 O22 (OH)2 150 125.5 2 86401 ,86419 3419 Aegirine (*) Pyroxene NaFe3+ Si2 O6 150 100 3 86405 ,86406 ,86420 1022 Aegirine-augite (*) Pyroxene (Ca,Na)(Fe3+ ,Mg,Fe2+ )Si2 O6 150 125.5 1 86420 286 Albite (*) Feldspar Na(AlSi3 O8 ) 482 100 10 86404 ,86417 ,86420 ,86430 ,86445 ,86454 ,86457 ,86460 ,86461 ,86462 8803 Allanite-(Ce) (*) Allanite Epidote CaCe(Al2 Fe2+ )[Si2 O7 ][SiO4 ]O(OH) 150 100 2 86404 ,86420 706 Alluaudite (*) Alluaudite NaMnFe3+ 2 (PO4 )3 482 454 2 86445 ,86451 94 Alunite (*) None KAl3 (SO4 )2 (OH)6 482 454 1 86449 966 Amblygonite (*) None LiAl(PO4 )F 2 86457 ,86460 244 Analcime (*) Analcime Na(AlSi2 O6 )·H2 O 150 125.5 3 86411 ,86413 ,86420 1627 Andradite (*) Garnet Ca3 Fe3+ 2 (SiO4 )3 5 86423 ,86428 ,86454 ,86455 ,86456 1534 Ankerite (*) None Ca(Fe2+ ,Mg)(CO3 )2 2 86438 ,86454 3092 Arfvedsonite (*) Amphibole NaNa2 (Fe2+ 4 Fe3+ )Si8 O22 (OH)2 145 100 3 86404 ,86405 ,86406 295 Arseniosiderite (*) Arseniosiderite Ca2 Fe3+ 3 O2 (AsO4 )3 ·3H2 O 482 454 2 86445 ,86454 194 Arsenopyrite (*) Arsenopyrite FeAsS 1 86438 9052 Astrophyllite (*) Astrophyllite K2 NaFe2+ 7 Ti2 (Si4 O12 )2 O2 (OH)4 F 145 100 3 86404 ,86405 ,86406 161 Augite (*) Pyroxene (Ca,Mg,Fe)2 Si2 O6 1 86411 2060 Axinite-(Mg) (*) Axinite Ca4 Mg2 Al4 [B2 Si8 O30 ](OH)2 1 86454 12 Azurite (*) Not in a structural group Cu3 (CO3 )2 (OH)2 4 86410 ,86438 ,86457 ,86460 5509 Babingtonite (*) Rhodonite Ca2 Fe2+ Fe3+ Si5 O14 (OH) 2 86411 ,86413 161 Barbosalite (*) Lazulite Fe2+ Fe3+ 2 (PO4 )2 (OH)2 482 454 2 86445 ,86451 43 Baryte (*) Baryte Ba(SO4 ) 3 86410 ,86411 ,86413 11547 Bermanite (*) Arthurite Mn2+ Mn3+ 2 (PO4 )2 (OH)2 ·4H2 O 482 454 1 86451 55 Beryl (*) Beryl Be3 Al2 Si6 O18 8 86410 ,86417 ,86423 ,86424 ,86426 ,86454 ,86457 ,86460 4286 Bornite (*) None Cu5 FeS4 1 86410 5516 Brochantite (*) Brochantite Cu4 (SO4 )(OH)6 1 86410 1633 Brookite (*) Brookite TiO2 1 86411 700 Calcite (*) Calcite Ca(CO3 ) 482 125.5 10 86401 ,86410 ,86411 ,86413 ,86420 ,86438 ,86449 ,86454 ,86457 ,86460 27770 Cassiterite (*) Rutile SnO2 526 100 20 86402 ,86405 ,86410 ,86415 ,86417 ,86418 ,86422 ,86423 ,86426 ,86430 ,86434 ,86435 ,86448 ,86451 ,86452 ,86457 ,86459 ,86460 ,86461 ,86462 5171 Celadonite (*) Mica Clay KMgFe3+ Si4 O10 (OH)2 1 86413 309 Chalcopyrite (*) Chalcopyrite CuFeS2 3 86410 ,86422 ,86438 27198 Childrenite (*) Childrenite Fe2+ Al(PO4 )(OH)2 ·H2 O 482 454 1 86445 93 Chrysoberyl (*) Olivine BeAl2 O4 1 86452 321 Chrysocolla (*) Allophane (Cu2-x Alx )H2-x Si2 O5 (OH)4 ·nH2 O 7 86410 ,86411 ,86412 ,86413 ,86422 ,86427 ,86438 3531 Clinozoisite (*) Clinozoisite Epidote Ca2 Al3 [Si2 O7 ][SiO4 ]O(OH) 3 86401 ,86434 ,86454 1025 Columbite-(Fe) (*) Columbite Fe2+ Nb2 O6 482 454 2 86445 ,86451 518 Conichalcite (*) Adelite CaCu(AsO4 )(OH) 1 86427 363 Copper (*) Copper Cu 3 86411 ,86412 ,86413 3846 Cristobalite (*) Cristobalite SiO2 1 86454 453 Cuprite (*) Not in a structural group Cu2 O 3 86411 ,86412 ,86438 2970 Cyrilovite (*) Wardite NaFe3+ 3 (PO4 )2 (OH)4 ·2H2 O 482 454 2 86445 ,86451 60 Dalyite (*) None K2 ZrSi6 O15 145 100 1 86405 15 Diopside (*) Pyroxene CaMgSi2 O6 2 86401 ,86454 4135 Dolomite (*) None CaMg(CO3 )2 482 454 2 86411 ,86445 9895 Dravite (*) Tourmaline NaMg3 Al6 (Si6 O18 )(BO3 )3 (OH)3 (OH) 2 86457 ,86460 648 Dufrénite (*) Dufrénite Ca0.5 Fe2+ Fe3+ 5 (PO4 )4 (OH)6 ·2H2 O 482 454 2 86445 ,86451 139 Dumortierite (*) Dumortierite AlAl6 BSi3 O18 2 86423 ,86426 231 Elbaite (*) Tourmaline Na(Al1.5 Li1.5 )Al6 (Si6 O18 )(BO3 )3 (OH)3 (OH) 482 454 3 86416 ,86451 ,86460 520 Eosphorite (*) Childrenite Mn2+ Al(PO4 )(OH)2 ·H2 O 482 454 2 86445 ,86451 128 Epidote (*) Epidote Clinozoisite Ca2 (Al2 Fe3+ )[Si2 O7 ][SiO4 ]O(OH) 150 125.5 8 86404 ,86409 ,86410 ,86411 ,86412 ,86413 ,86420 ,86454 8173 Eudialyte (*) Eudialyte Na15 Ca6 Fe3 Zr3 Si(Si25 O73 )(O,OH,H2 O)3 (Cl,OH)2 150 125.5 1 86420 182 Fairfieldite (*) Fairfieldite Ca2 Mn2+ (PO4 )2 ·2H2 O 482 454 1 86451 72 Ferberite (*) Columbite Fe2+ (WO4 ) 2 86410 ,86454 551 Ferrisicklerite (*) Olivine Li1-x (Fe3+ ,Mn2+ )(PO4 ) 482 454 4 86416 ,86418 ,86445 ,86448 108 Ferronigerite-2N1S (*) None (Al,Fe,Zn)2 (Al,Sn)6 O11 (OH) 2 86452 ,86462 14 Fluorapatite (*) Apatite Ca5 (PO4 )3 F 482 454 6 86426 ,86445 ,86451 ,86454 ,86457 ,86460 2740 Fluorite (*) Fluorite CaF2 150 100 11 86401 ,86404 ,86405 ,86410 ,86420 ,86426 ,86429 ,86430 ,86444 ,86454 ,86458 9617 Frondelite (*) Rockbridgeite (Mn2+ 0.5 Fe3+ 0.5 )2 Fe3+ 3 (PO4 )3 (OH)5 482 454 2 86445 ,86451 52 Gahnite (*) Spinel ZnAl2 O4 1 86452 445 Galena (*) Rocksalt PbS 482 454 5 86410 ,86438 ,86449 ,86457 ,86460 24243 Giniite (*) None Fe2+ Fe3+ 4 (PO4 )4 (OH)2 ·2H2 O 482 454 2 86445 ,86451 2 Goethite (*) Diaspore FeO(OH) 482 125.5 7 86401 ,86410 ,86411 ,86413 ,86420 ,86445 ,86454 7437 Gold (*) Copper Au 2 86427 ,86438 30554 Goldmanite (*) Garnet Ca3 V3+ 2 (SiO4 )3 1 86454 31 Goyazite (*) Alunite SrAl3 (PO4 )(PO3 OH)(OH)6 1 86423 173 Graphite (*) None C 482 454 2 86410 ,86449 2812 Grossular (*) Garnet Ca3 Al2 (SiO4 )3 1 86401 1544 Grunerite (*) Amphibole Fe2+ 2 Fe2+ 5 Si8 O22 (OH)2 482 454 1 86449 223 Gypsum (*) Gypsum Ca(SO4 )·2H2 O 150 125.5 3 86411 ,86413 ,86420 6890 Hastingsite (*) Amphibole NaCa2 (Fe2+ 4 Fe3+ )(Si6 Al2 )O22 (OH)2 150 125.5 1 86420 209 Hedenbergite (*) Pyroxene CaFe2+ Si2 O6 1 86454 741 Hematite (*) Corundum Fe2 O3 4 86410 ,86411 ,86438 ,86461 14640 Heterosite (*) Olivine Fe3+ (PO4 ) 482 454 7 86415 ,86416 ,86418 ,86445 ,86447 ,86448 ,86451 204 Hübnerite (*) Columbite Mn2+ (WO4 ) 1 86410 469 Hureaulite (*) Hureaulite Mn2+ 5 (PO3 OH)2 (PO4 )2 ·4H2 O 482 454 2 86445 ,86451 125 Ixiolite (*) Columbite (Ta2/3 Mn2+ 1/3 )O2 2 86457 ,86460 148 Kaolinite (*) Clay Kaolinite Al2 Si2 O5 (OH)4 482 454 1 86449 5591 Kësterite (*) Stannite Sphalerite Cu2 ZnSnS4 2 86457 ,86460 82 Kidwellite (*) None NaFe3+ 9+x (PO4 )6 (OH)11 ·3H2 O (x ≈ 0.33) 482 454 2 86445 ,86451 53 Kryzhanovskite (*) Reddingite (Fe3+ ,Mn2+ )3 (PO4 )2 (OH,H2 O)3 482 454 1 86451 34 Langite (*) None Cu4 (SO4 )(OH)6 ·2H2 O 1 86410 593 Laueite (*) Laueite Mn2+ Fe3+ 2 (PO4 )2 (OH)2 ·8H2 O 482 454 2 86445 ,86451 70 Laumontite (*) Not in a structural group CaAl2 Si4 O12 ·4H2 O 2 86411 ,86413 1271 Lazulite (*) Lazulite MgAl2 (PO4 )2 (OH)2 1 86453 232 Leucophosphite (*) Leucophosphite KFe3+ 2 (PO4 )2 (OH)·2H2 O 482 454 2 86445 ,86451 110 Lipscombite (*) Lipscombite Fe2+ Fe3+ 2 (PO4 )2 (OH)2 482 454 2 86445 ,86451 47 Lithiophilite (*) Olivine LiMn2+ (PO4 ) 1 86414 155 Magnesite (*) Calcite Mg(CO3 ) 1 86454 1487 Magnetite (*) Spinel Fe2+ Fe3+ 2 O4 150 125.5 4 86409 ,86411 ,86420 ,86438 14899 Malachite (*) Malachite Cu2 (CO3 )(OH)2 7 86410 ,86422 ,86427 ,86437 ,86438 ,86457 ,86460 12537 Manganite (*) Rutile Mn3+ O(OH) 482 454 1 86451 770 Marcasite (*) Marcasite FeS2 2 86410 ,86438 5674 Meionite (*) Scapolite Ca4 Al6 Si6 O24 (CO3 ) 1 86401 176 Mélonjosephite (*) None CaFe2+ Fe3+ (PO4 )2 (OH) 482 454 2 86445 ,86451 6 Metanováčekite (*) None Mg(UO2 )2 (AsO4 )2 ·8H2 O 1 86454 26 Metazeunerite (*) None Cu(UO2 )2 (AsO4 )2 ·8H2 O 1 86454 182 Microcline (*) Feldspar K(AlSi3 O8 ) 482 100 9 86404 ,86417 ,86420 ,86445 ,86451 ,86454 ,86457 ,86460 ,86462 4924 Mitridatite (*) Arseniosiderite Ca2 Fe3+ 3 O2 (PO4 )3 ·3H2 O 482 454 2 86445 ,86451 129 Monazite-(Ce) (*) Monazite Ce(PO4 ) 145 100 4 86404 ,86405 ,86454 ,86460 945 Monetite (*) None Ca(PO3 OH) 482 454 2 86445 ,86451 21 Montebrasite (*) None LiAl(PO4 )(OH) 482 454 1 86445 200 Montgomeryite (*) Calcioferrite Ca4 MgAl4 (PO4 )6 (OH)4 ·12H2 O 482 454 2 86445 ,86451 44 Muscovite (*) Mica Clay KAl2 (Si3 Al)O10 (OH)2 482 100 13 86401 ,86404 ,86410 ,86417 ,86422 ,86425 ,86430 ,86445 ,86454 ,86457 ,86460 ,86461 ,86462 17380 Natrojarosite (*) Alunite NaFe3+ 3 (SO4 )2 (OH)6 482 454 3 86427 ,86445 ,86451 254 Nepheline (*) Tridymite Na3 K(Al4 Si4 O16 ) 150 125.5 1 86420 884 Nontronite (*) Clay Smectite-vermiculite Na0.3 Fe3+ 2 (Si,Al)4 O10 (OH)2 ·nH2 O 1 86454 471 Opal (*) Amorphous SiO2 ·n H2 O 1 86454 2994 Orthoclase (*) Feldspar K(AlSi3 O8 ) 482 125.5 2 86420 ,86445 2349 Paragonite (*) Mica Clay NaAl2 (Si3 Al)O10 (OH)2 526 466 1 86459 247 Petalite (*) Not in a structural group LiAlSi4 O10 482 454 4 86445 ,86448 ,86457 ,86460 124 Phlogopite (*) Mica Clay KMg3 (AlSi3 O10 )(OH)2 482 454 1 86445 2273 Phosphosiderite (*) Phosphosiderite Fe3+ (PO4 )·2H2 O 482 454 2 86445 ,86451 182 Pigeonite (*) Pyroxene (Mg,Fe,Ca)2 Si2 O6 1 86411 303 Prehnite (*) Prehnite Ca2 Al(Si3 Al)O10 (OH)2 5 86409 ,86411 ,86412 ,86413 ,86454 1898 Pumpellyite-(Mg) (*) Pumpellyite Ca2 MgAl2 (Si2 O7 )(SiO4 )(OH)2 ·H2 O 1 86411 106 Pyrite (*) Pyrite FeS2 482 125.5 11 86410 ,86411 ,86413 ,86420 ,86422 ,86427 ,86438 ,86445 ,86449 ,86457 ,86460 39462 Pyrophyllite (*) Clay Pyrophyllite Al2 Si4 O10 (OH)2 1 86407 771 Pyrrhotite (*) Nickeline Fe7 S8 2 86410 ,86438 9056 Quartz (*) Quartz SiO2 482 125.5 25 86401 ,86404 ,86409 ,86410 ,86411 ,86413 ,86417 ,86420 ,86422 ,86425 ,86426 ,86427 ,86430 ,86438 ,86444 ,86445 ,86449 ,86451 ,86452 ,86454 ,86455 ,86457 ,86460 ,86461 ,86462 61156 Riebeckite (*) Amphibole Na2 (Fe2+ 3 Fe3+ 2 )Si8 O22 (OH)2 145 100 1 86404 375 Robertsite (*) Arseniosiderite Ca2 Mn3+ 3 O2 (PO4 )3 ·3H2 O 482 454 2 86445 ,86451 36 Rockbridgeite (*) Rockbridgeite (Fe2+ 0.5 Fe3+ 0.5 )2 Fe3+ 3 (PO4 )3 (OH)5 482 454 1 86445 206 Russellite (*) None Bi2 WO6 1 86454 40 Rutile (*) Rutile TiO2 150 100 2 86405 ,86420 5614 Scheelite (*) Scheelite Ca(WO4 ) 2 86401 ,86410 4894 Schorl (*) Tourmaline NaFe2+ 3 Al6 (Si6 O18 )(BO3 )3 (OH)3 (OH) 482 125.5 9 86410 ,86420 ,86423 ,86426 ,86430 ,86445 ,86451 ,86454 ,86460 2705 Scolecite (*) Natrolite Ca(Si3 Al2 )O10 ·3H2 O 150 125.5 2 86411 ,86420 390 Scorzalite (*) Lazulite Fe2+ Al2 (PO4 )2 (OH)2 482 454 2 86445 ,86451 60 Segnitite (*) Alunite PbFe3+ 3 (AsO4 )(AsO3 OH)(OH)6 1 86454 134 Siderite (*) Calcite Fe(CO3 ) 4 86406 ,86411 ,86413 ,86438 6417 Sillimanite (*) Not in a structural group Al2 SiO5 1 86452 1516 Sodalite (*) Cancrinite-sodalite Sodalite Na4 (Si3 Al3 )O12 Cl 150 125.5 1 86420 444 Sphalerite (*) Sphalerite ZnS 2 86410 ,86438 21482 Spodumene (*) Pyroxene LiAlSi2 O6 2 86460 ,86461 688 Staněkite (*) Wagnerite Fe3+ Mn2+ O(PO4 ) 482 454 1 86445 13 Stannite (*) Stannite Sphalerite Cu2 FeSnS4 3 86410 ,86457 ,86460 668 Stolzite (*) Scheelite Pb(WO4 ) 1 86454 156 Strengite (*) None Fe3+ (PO4 )·2H2 O 482 454 2 86445 ,86451 263 Talc (*) Clay Talc Mg3 Si4 O10 (OH)2 1 86410 3337 Tantalite-(Fe) (*) Columbite Fe2+ Ta2 O6 482 454 1 86451 99 Tavorite (*) None LiFe3+ (PO4 )(OH) 482 454 2 86445 ,86451 35 Tenorite (*) None CuO 1 86411 1101 Thorite (*) Zircon Th(SiO4 ) 145 100 1 86405 1006 Tinsleyite (*) Leucophosphite KAl2 (PO4 )2 (OH)·2H2 O 1 86426 9 Titanite (*) Titanite CaTi(SiO4 )O 1 86401 4899 Topaz (*) Topaz Al2 SiO4 F2 150 100 8 86404 ,86410 ,86420 ,86423 ,86426 ,86454 ,86457 ,86460 1476 Tremolite (*) Amphibole Ca2 (Mg5.0-4.5 Fe2+ 0.0-0.5 )Si8 O22 (OH)2 1 86401 2562 Tridymite (*) Tridymite SiO2 1 86454 458 Triphylite (*) Olivine LiFe2+ (PO4 ) 482 454 4 86418 ,86445 ,86448 ,86451 313 Triplite (*) Triplite Mn2+ 2 (PO4 )F 482 454 5 86416 ,86430 ,86431 ,86451 ,86452 233 Uranotungstite (*) None Ba(UO2 )2 W2 O8 (OH)2 ·H2 O 1 86454 6 Ushkovite (*) Laueite MgFe3+ 2 (PO4 )2 (OH)2 ·8H2 O 482 454 2 86445 ,86451 18 Variscite (*) None Al(PO4 )·2H2 O 482 454 2 86445 ,86451 301 Varlamoffite (*) Rutile (Sn,Fe)(O,OH)2 2 86457 ,86460 56 Vesuvianite (*) Vesuvianite (Ca,Na)19 (Al,Mg,Fe)13 (SiO4 )10 (Si2 O7 )4 (OH,F,O)10 2 86401 ,86454 1395 Vivianite (*) Vivianite Fe2+ 3 (PO4 )2 ·8H2 O 482 454 1 86451 636 Walpurgite (*) None Bi4 O4 (UO2 )(AsO4 )2 ·2H2 O 1 86454 38 Whiteite-(CaMnMg) (*) Jahnsite CaMn2+ Mg2 Al2 (PO4 )4 (OH)2 ·8H2 O 482 454 2 86445 ,86451 7 Whitlockite (*) Cerite Ca9 Mg(PO3 OH)(PO4 )6 482 454 2 86445 ,86451 104 Wodginite (*) Columbite Mn2+ Sn4+ Ta2 O8 2 86457 ,86460 78 Wollastonite (*) Wollastonite CaSiO3 1 86401 1247 Wulfenite (*) Scheelite PbMoO4 145 100 2 86405 ,86454 1655 Xenotime-(Y) (*) Zircon Y(PO4 ) 145 100 2 86405 ,86454 939 Zinconigerite-2N 1S (*) None ZnSn2 Al12 O22 (OH)2 1 86460 4 Zircon (*) Zircon Zr(SiO4 ) 150 100 8 86401 ,86404 ,86405 ,86406 ,86420 ,86457 ,86460 ,86461 5251
Excel ID Max Age (Ma) Min Age (Ma) Age as listed in reference Dating Method Age Interpret Prioritized? Sample Source Sample Num Run Num Age from other Locality Dated Mineral Minerals explicitely stated as having this age Age applies to these Elements MinDat Locality ID Dated Locality (Max Age) Location as listed in reference Reference Reference DOI Reference ID Age Notes Edit ree-00484 145 100 Early Cretaceous 158053 Brandberg Complex, Brandberg Area, Dâures, Erongo Region, Namibia Brandberg Complex Orris and Grauch (2002) USGSOFR02_189 Edit ree-00483 145 100 Early Cretaceous 28841 Amis Complex, Brandberg Complex, Brandberg Area, Dâures, Erongo Region, Namibia Amis Complex Orris and Grauch (2002) USGSOFR02_189 Edit Jen_0000463 134.2 129.8 132±2.2 Rb-Sr whole rock 235952 Messum Igneous Complex, Brandberg Area, Dâures, Erongo Region, Namibia Messum Complex Ernst and Bell (2010) 10.1007/s00710-009-0074-1 MP98_55 Edit Jen_0000464 150 148 149±1 Ar-Ar biotite 235952 Messum Igneous Complex, Brandberg Area, Dâures, Erongo Region, Namibia Messum Complex Ernst and Bell (2010) 10.1007/s00710-009-0074-1 MP98_55 Edit Jen_0000465 128.1 125.5 126.8±1.3 Rb-Sr whole rock 235952 Messum Igneous Complex, Brandberg Area, Dâures, Erongo Region, Namibia Messum Complex Ernst and Bell (2010) 10.1007/s00710-009-0074-1 MP98_55 Edit Scott-CGSN8_5-0001 482 454 468±14 Rb-Sr Age of intrusion whole rock 2430 Sandamap Pegmatite (Sandamab Pegmatite), Sandamap North Farm 115 (Sandamab), Dâures, Erongo Region, Namibia Sandamap Pegmatite Steven et al. (1993) CGSN8_5 P. 10 Table 3 Edit Scott-CGSN8_5-0003 526 466 496±30 Rb-Sr Age of intrusion whole rock 25561 Uis Mine (Uis Myn), Uis (Groot Uis), Dâures, Erongo Region, Namibia Uis mine Steven et al. (1993) CGSN8_5 P. 10 Table 3
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