Niobium (Nb) Minerals sorted by Descending Weight Percent
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% Nb | Mineral Name | Chemical Formula | MW |
56.69 % Nb | Natroniobite | NaNbO3 | 163.89 |
55.03 % Nb | Columbite-(Fe) # | Fe++Nb2O6 | 337.66 |
52.51 % Nb | Pyrochlore # | (Na,Ca)2Nb2O6(OH,F) | 353.84 |
52.07 % Nb | Kalipyrochlore | (H2O,Sr)(Nb,Ti)(O,OH)6·(H2O,K) | 321.15 |
50.58 % Nb | Hochelagaite | (Ca,Na,Sr)Nb4O11·8(H2O) | 734.68 |
49.17 % Nb | Franconite | Na2Nb4O11·9(H2O) | 755.74 |
49.10 % Nb | Ternovite ! | (Mg,Ca)Nb4O11-n(H2O) where n ~ 10 | 756.81 |
48.68 % Nb | Bariopyrochlore | (Ba,Sr)(Nb,Ti)2(O,OH)7 | 343.55 |
47.79 % Nb | Columbite-(Mg) | (Mg,Fe++,Mn)(Nb,Ta)2O6 | 330.49 |
44.22 % Nb | Nioboaeschynite-(Ce) | (Ce,Ca)(Nb,Ti)2(O,OH)6 | 367.65 |
42.81 % Nb | Edgarite ! | FeNb2S6 | 434.06 |
40.40 % Nb | Fersmite # | (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 | 390.96 |
39.11 % Nb | Strontiopyrochlore * | Sr2Nb2(O,OH)7 | 475.06 |
38.26 % Nb | Natrokomarovite * | Na6CaNb6[Si4O12F2·4(H2O) | 1,359.81 |
38.00 % Nb | Changbaiite | PbNb2O6 | 489.01 |
37.80 % Nb | Fergusonite-beta-(Y) | YNbO4 | 245.81 |
37.80 % Nb | Fergusonite-(Y) # | YNbO4 | 245.81 |
37.11 % Nb | Mongolite | Ca4Nb6Si5O24(OH)10·5(H2O) | 1,502.31 |
34.62 % Nb | Nioboaeschynite-(Nd) ! | (Nd,Ce)(Nb,Ti)2(O,OH)6 | 402.50 |
34.42 % Nb | Isolueshite ! | (Na,La,Ca)(Nb,Ti)O3 | 202.42 |
33.34 % Nb | Stibiocolumbite # | SbNbO4 | 278.65 |
33.26 % Nb | Komarovite | (Ca,Mn)2(Nb,Ti)2Si2O7(O,F)2·3.5(H2O) | 502.73 |
33.16 % Nb | Euxenite-(Y) # | (Y,Ca,Ce)(Nb,Ta,Ti)2O6 | 392.28 |
32.94 % Nb | Columbite-(Mn) # | (Mn,Fe++)(Nb,Ta)2O6 | 394.81 |
32.83 % Nb | Niobocarbide ! | (Nb,Ta)C | 147.18 |
31.35 % Nb | Foordite | Sn++(Nb,Ta)2O6 | 444.54 |
31.29 % Nb | Fergusonite-(Ce) * | (Ce,La,Y)NbO4 | 296.94 |
30.86 % Nb | Menezesite ! | Ba2MgZr4(BaNb12O42)·12H2O | 2,778.48 |
30.37 % Nb | Gerasimovskite # | (Mn,Ca)(Nb,Ti)5O12·9(H2O) (?) | 764.66 |
30.11 % Nb | Latrappite | (Ca,Na)(Nb,Ti,Fe)O3 | 154.29 |
29.30 % Nb | Fergusonite-beta-(Nd) | (Nd,Ce)NbO4 | 285.36 |
28.97 % Nb | Qitianlingite | Fe++2Nb2W++++++O10 | 641.35 |
28.95 % Nb | Fergusonite-beta-(Ce) | (Ce,La,Nd)NbO4 | 288.78 |
28.27 % Nb | Calciobetafite | Ca2(Ti,Nb)2(O,OH)7 | 394.30 |
27.82 % Nb | Fergusonite-(Nd) * | (Nd,Ce)(Nb,Ti)O4 | 267.16 |
27.31 % Nb | Liandratite | U++++++(Nb,Ta)2O8 | 578.25 |
26.87 % Nb | Plumbopyrochlore | (Pb,Y,U,Ca)2-xNb2O6(OH) | 484.00 |
26.40 % Nb | Belkovite ! | Ba3(Nb,Ti)6(Si2O7)2O12 | 1,407.69 |
25.89 % Nb | Ashanite ? | (Nb,Ta,U,Fe,Mn)4O8 | 574.20 |
25.56 % Nb | Vuoriyarvite-K ! | (K,Na)2(Nb,Ti)2Si4O12(O,OH)2·4(H2O) | 654.35 |
24.79 % Nb | Samarskite-(Y) # | (Y,Fe+++,U)(Nb,Ta)5O4 | 299.85 |
24.76 % Nb | Bismutopyrochlore ! | (Bi,U,Ca,Pb)1+x(Nb,Ta)2O6(OH)·n(H2O) | 562.81 |
24.45 % Nb | Yttropyrochlore-(Y) | (Y,Na,Ca,U)1-2(Nb,Ta,Ti)2(O,OH)7 | 455.99 |
23.69 % Nb | Nioboaeschynite-(Y) ! | [(Y,REE),Ca,Th,Fe](Nb,Ti,Ta)2(O,OH)6 | 368.70 |
23.66 % Nb | Ishikawaite # | (U,Fe,Y,Ca)(Nb,Ta)O4 (?) | 294.45 |
23.53 % Nb | Epistolite # | (Na,[ ])2{(Na,Ti)4[Nb2(O,H2O)4Si4O14](OH,F)2}·2H2O | 758.20 |
23.49 % Nb | Yttrocolumbite-(Y) # | (Y,U,Fe++)(Nb,Ta)O4 | 296.62 |
23.01 % Nb | Schiavinatoite ! | (Nb,Ta)BO4 | 209.97 |
22.94 % Nb | Wolframoixiolite * | (Fe,Mn,Nb)(Nb,W,Ta)O4 | 242.98 |
22.46 % Nb | Vigezzite | (Ca,Ce)(Nb,Ta,Ti)2O6 | 372.21 |
22.44 % Nb | Gjerdingenite-Fe ! | K2[(H2O)2(Fe,Mn)][(Nb,Ti)4(Si4O12)2(O,OH)4]·4(H2O) | 1,242.18 |
22.05 % Nb | Gjerdingenite-Mn ! | (K,Na)2(Mn,Fe)(Nb,Ti)4(Si4O12)2(O,OH)4·6(H2O) | 2,494.47 |
21.66 % Nb | Samarskite-(Yb) ! | (Yb,Y,REE,U,Th,Ca,Fe++) (Nb,Ta,Ti)O4 | 312.29 |
21.38 % Nb | Petscheckite | U++++Fe++(Nb,Ta)2O8 | 651.70 |
21.16 % Nb | Karupmollerite-Ca ! | (Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4·7(H2O) | 1,185.70 |
21.11 % Nb | Nenadkevichite ! | (Na,Ca,K)(Nb,Ti)Si2O6(O,OH)·2(H2O) | 308.14 |
20.76 % Nb | Organovaite-Mn ! | K2Mn(Nb,Ti)4(Si4O12)2(O,OH)4·6(H2O) | 2,372.13 |
20.14 % Nb | Betafite # | (Ca,U)2(Ti,Nb,Ta)2O6(OH) | 415.12 |
19.50 % Nb | Ilmenorutile # | (Ti,Nb,Fe+++)O2 | 95.27 |
19.21 % Nb | Gjerdingenite-Na ! | (K,Na)2Na(Nb,Ti)4(Si4O12)2(OH,O)4·5H2O | 1,175.50 |
19.17 % Nb | Gjerdingenite-Ca ! | K2Ca(Nb,Ti)4(Si4O12)2(O,OH)4·6H2O | 1,216.40 |
18.88 % Nb | Uranpyrochlore | (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) | 541.23 |
18.28 % Nb | Organovaite-Zn ! | K2Zn(Nb,Ti)4(Si4O12)2(O,OH)4·6(H2O) | 2,439.14 |
17.96 % Nb | Bismutocolumbite | Bi(Nb,Ta)O4 | 387.89 |
17.25 % Nb | Calciotantite | Ca(Ta,Nb)4O11 | 807.80 |
17.11 % Nb | Shkatulkalite ! | {(Na,Mn,Ca,[ ])4[Nb2(O,H2O)4Si4O14](OH,F)2}·2(H2O,[ ]) | 1,086.02 |
17.04 % Nb | Tantalite-(Mg) ! | (Mg,Fe)(Ta,Nb)2O6 | 425.25 |
16.91 % Nb | Vuonnemite | Na11Nb2TiSi4O12(PO4)2O5F2 | 1,098.85 |
15.45 % Nb | Johnwalkite | K(Mn++,Fe+++,Fe++)2(Nb,Ta)(PO4)2O2((H2O),OH)2 | 480.93 |
14.99 % Nb | Stibiobetafite | (Sb+++,Ca)2(Ti,Nb,Ta)2(O,OH)7 | 433.88 |
14.95 % Nb | Polycrase-(Y) # | (Y,Ca,Ce,U,Th)(Ti,Nb,Ta)2O6 | 372.96 |
14.93 % Nb | Behierite | (Ta,Nb)BO4 | 224.06 |
14.56 % Nb | Kobeite-(Y) # | (Y,U)(Ti,Nb)2(O,OH)6 (?) | 319.10 |
14.34 % Nb | Tsepinite-Na ! | (Na,H3O,K,Sr,Ba)2(Ti,Nb)2[Si4O12](OH,O)2·3(H2O) | 2,397.82 |
14.12 % Nb | Sitinakite | Na2K(Ti,Nb)4O4(SiO4)2(O,OH)·4(H2O) | 658.10 |
14.01 % Nb | Fersmanite # | Ca4(Na,Ca)4(Ti,Nb)4(Si2O7)2O8F3 | 1,061.05 |
13.31 % Nb | Olmsteadite | KFe++2(Nb,Ta)(PO4)2O2·2(H2O) | 523.68 |
13.26 % Nb | Ceriopyrochlore-(Ce) | (Ce,Ca,Y)2(Nb,Ta)2O6(OH,F) | 560.46 |
12.80 % Nb | Rankamaite | (Na,K,Pb,Li)3(Ta,Nb,Al)11(O,OH)30 | 2,177.26 |
12.75 % Nb | Yttrobetafite-(Y) | (Y,U,Ce)2(Ti,Nb,Ta)2O6(OH) | 437.15 |
12.56 % Nb | Neskevaaraite-Fe ! | NaK3Fe(Ti,Nb)4(Si4O12)2(O,OH)4·6(H2O) | 1,235.20 |
12.30 % Nb | Parakuzmenkoite-Fe ! | (K,Ba)2Fe(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O) | 2,567.15 |
12.14 % Nb | Zirkelite | (Ca,Th,Ce)Zr(Ti,Nb)2O7 | 382.76 |
12.09 % Nb | Stibiomicrolite # | (Sb,Ca,Na)2(Ta,Nb)2(O,OH)7 | 538.04 |
12.05 % Nb | Zirconolite-3O # | (Ca,Fe,Y,Th)2Fe(Ti,Nb)3Zr2O7 | 385.57 |
11.99 % Nb | Niobophyllite | K2Na(Fe++,Mn)7(Nb,Ti)2Si8O26(OH)4(F,O) | 1,394.28 |
11.96 % Nb | Niocalite # | Ca14Nb2(Si2O7)4O6F2 | 1,553.57 |
11.57 % Nb | Iwashiroite-(Y) ! | YTaO4 | 313.16 |
11.39 % Nb | Lithiotantite | Li(Ta,Nb)3O8 | 611.75 |
11.34 % Nb | Marianoite ! | Na2Ca4(Nb,Zr)2(Si2O7)2(O,F)4 | 792.51 |
11.29 % Nb | Loparite-(Ce) # | (Ce,Na,Ca)2(Ti,Nb)2O6 | 164.60 |
11.19 % Nb | Tsepinite-Sr ! | (Sr,Ba,K)(Ti,Nb)2(Si4O12)(OH,O)2·3(H2O) | 572.95 |
10.94 % Nb | Ungursaite * | NaCa5(Ta,Nb)24O65(OH) | 5,094.85 |
10.64 % Nb | Burovaite-Ca ! | (K,Na)4Ca2(Ti,Nb)8[Si4O12]4(OH,O)8·12H2O | 2,235.05 |
10.27 % Nb | Manganbelyankinite # | (Mn,Ca)(Ti,Nb)5O12·9(H2O) | 723.53 |
10.23 % Nb | Rynersonite | Ca(Ta,Nb)2O6 | 453.95 |
9.87 % Nb | Koragoite | (Mn++,Fe+++)3(Nb,Ta,Ti)2(Nb,Mn)2(W,Ta)2O20 | 1,130.10 |
9.40 % Nb | Wohlerite # | NaCa2(Zr,Nb)Si2O7(O,OH,F)2 | 395.27 |
9.34 % Nb | Lemmleinite-K ! | NaK2(Ti,Nb)2Si4O12(O,OH)2·2(H2O) | 596.73 |
9.14 % Nb | Belyankinite # | Ca1-2(Ti,Zr,Nb)5O12·9(H2O) (?) | 711.83 |
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(? - IMA Discredited Mineral Species Name)
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