Mineral Species containing Niobium (Nb )

Mineral Species containing Niobium (Nb )
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Niobium (Nb ) by %

Niobium (Nb) Element Properties
Atomic Mass 92.90638
Atomic Number 41
Name Origins Greek, Niobe = "daughter of Tantalus"
Year Discovered 1801
Discovery Credits Discovered by C. Hatchett at London, UK
Remarks Shiny silvery metal, soft when pure. Resists corrosion due to oxide film, attacked by hot, concentrated acids but resists fused alkalis. Used in stainless steels and super-conductor alloys. The element niobium was formerly known as "columbium".

Diagnostic tests: 
An acid solution boiled with metallic tin gives a blue color which slowly changes to brown on continued boiling and disappears on dilution. Most flux reactions are not very good. Absorption Spectroscopy is used for quantitative analysis and Energy Dispersive Analysis of X-rays (EDAX) is used for qualitative analysis.

References Emsley, J., 1991; THE ELEMENTS : Sec. Ed., Clarendon Press, Oxford, 251 p.
See Also WebElements, ChemiCool
Naturally Occurring Isotopes
Symbol Isotope Mass Isotope Nuclide Number Isotope Number Natural Abundance Half-life Half-life Units Decay Mode Decay Mode MeV Decay Mode %
Nb 92.906377 93 41 100.0000%   Stable      

Mineral Species sorted by the element Nb (Niobium )

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%Nb Mineral Name Chemical Formula MW
56.69%Nb Lueshite   NaNbO3 163.89
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)wheren~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
39.26%Nb Nioboaeschynite-(Nd)  ! (Nd,Ce)(Nb,Ti)2(O,OH)6 414.15
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-(Y)   YNbO4 245.81
37.80%Nb Fergusonite-beta-(Y)   YNbO4 245.81
37.11%Nb Mongolite   Ca4Nb6Si5O24(OH)10•5(H2O) 1,502.31
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
21.11%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
20.71%Nb Karupmollerite-Ca  ! (Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4•7(H2O) 1,211.35
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
17.96%Nb Koragoite   (Mn++,Fe+++)3(Nb,Ta,Ti)2(Nb,Mn)2(W,Ta)2O20 1,241.59
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
9.40%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
8.94%Nb Uranopolycrase   (U,Y)(Ti,Nb,Ta)2O6 415.77
8.87%Nb Kuzmenkoite-Zn  ! K2Zn(Ti,Nb)4(Si4O12)2(OH,O)4•6-8(H2O) 1,214.76
8.83%Nb Yttrotantalite-(Y)   (Y,U,Fe++)(Ta,Nb)O4 315.74
8.77%Nb Niobokupletskite  ! K2Na(Mn,Zn,Fe)7(Nb,Zr,Ti)2Si8O26(OH)4(O,F) 1,377.37
8.73%Nb Plumbobetafite   (Pb,U,Ca)(Ti,Nb)2O6(OH,F) 425.90
8.69%Nb Alsakharovite-Zn  ! NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4•7(H2O) 1,240.78
8.45%Nb Aeschynite-(Y)   (Y,Ca,Fe)(Ti,Nb)2(O,OH)6 274.97
8.43%Nb Natrobistantite   (Na,Cs)Bi(Ta,Nb,Sb)4O12 1,101.75
8.28%Nb IMA2008-024  ! (Ca,Na,REE,[])7(Nb,Ti)[Si2O7]2OF3 841.27
8.22%Nb Baotite   Ba4(Ti,Nb)8Si4O28Cl 1,582.82
8.13%Nb Paratsepinite-Ba  ! (Ba,Na,K)2-x(Ti,Nb)2(Si4O12)(OH,O)2•4(H2O) 628.25
8.13%Nb Paratsepinite-Na  ! (Na,Sr,K,Ca)7(Ti,Nb)8[Si4O12]4(O,OH)8•n(H2O)n~8 2,286.52
8.03%Nb Korobitsynite  ! Na3(Ti,Nb)2[Si4O12](OH,O)2•3-4(H2O) 578.44
7.96%Nb Titanowodginite   (Mn++,Fe++)(Ti,Sn)(Ta,Nb)2O8 583.43
7.92%Nb Struverite  ? (Ti,Ta,Fe+++)O2 117.38
7.83%Nb Nacareniobsite-(Ce)   NbNa3Ca3(Ce,La)(Si2O7)2OF3 830.67
7.73%Nb Tanteuxenite-(Y)   (Y,Ce,Ca)(Ta,Nb,Ti)2(O,OH)6 480.83
7.68%Nb Shcherbakovite   KKNaTi2O(OH)[Si4O12] 568.26
7.60%Nb Aeschynite-(Ce)   (Ce,Ca,Fe)(Ti,Nb)2(O,OH)6 305.70
7.47%Nb Ilimaussite-(Ce)   (Ba,Na)10K3Na4.5Ce5(Nb,Ti)6[Si12O36][Si9O18(O,OH)24]O6 4,253.30
7.44%Nb Lepkhenelmite-Zn  ! Ba2Zn(Ti,Nb)4(Si4O12)2(O,OH)4•7(H2O) 1,261.08
7.44%Nb Bykovaite  ! BaNa{(Na,Ti)4[(Ti,Nb)2(OH,O)3Si4O14](OH,F)2}•3H2O 824.26
7.23%Nb Normandite  ! NaCa(Mn++,Fe++)(Ti,Nb,Zr)Si2O7(O,F)2 385.62
7.16%Nb Bornemanite   BaNa3{(Na,Ti)4[(Ti,Nb)2O2Si4O14](F,OH)2}•PO4 908.83
7.10%Nb IMA2000-026  ! (Mn,Li)4(Ta,Sn)4(Ta,Nb)8O32 2,616.79
7.07%Nb Nechelyustovite  ! (Ba,Na)2{(Na,Ti,Mn)4[(Ti,Nb)2O2Si4O14](OH,O,F)2}•4.5H2O 880.23
6.97%Nb Murataite   (Y,Na)6(Zn,Fe+++)5(Ti,Nb)12O29(O,F)14 2,000.60
6.70%Nb Aeschynite-(Nd)   (Nd,Ce)(Ti,Nb)2(O,OH)6 346.61
6.55%Nb Jedwabite  ! Fe7(Ta,Nb)3 708.80
6.55%Nb Joaquinite-(Ce)   NaFe++Ba2Ce2(Ti,Nb)2[Si4O12]2O2(OH,F)•(H2O) 1,419.19
6.40%Nb Karnasurtite-(Ce)   (Ce,La,Th)(Ti,Nb)(Al,Fe+++)(Si,P)2O7(OH)4•3(H2O)(?) 450.31
6.27%Nb Tsepinite-Ca  ! (Ca,K,Na,[])2(Ti,Nb)2(Si4O12)(OH,O)2•4(H2O) 1,200.24
5.85%Nb Wodginite   Mn++(Sn,Ta)(Ta,Nb)2O8 635.06
5.83%Nb Stannomicrolite   (Sn++,Fe++,Mn++)(Ta,Nb,Sn++++)2(O,OH)7 637.44
5.80%Nb Ixiolite   (Ta,Nb,Sn,Mn++,Fe++)O2 160.21
5.77%Nb Tapiolite-(Mn)   (Mn++,Fe++)(Ta,Nb)2O6 482.71
5.71%Nb Simpsonite   Al4(Ta,Nb)3O13(OH) 813.65
5.15%Nb Irtyshite   Na2(Ta,Nb)4O11 901.74
4.99%Nb Tsepinite-K  ! (K,Ba,Na)2(Ti,Nb)2(Si4O12)(OH,O)2•3(H2O) 614.51
4.95%Nb Murmanite   (Na,[ ])2{(Na,Ti)4[Ti2(O,H2O)4Si4O14](OH,F)2}•2H2O 750.89
4.72%Nb Bismutomicrolite   (Bi,Ca)(Ta,Nb)2O6(OH) 589.91
4.56%Nb Eveslogite  ! (Ca,K,Na,Sr,Ba)48[(Ti,Nb,Fe,Mn)12(OH)12Si48O144](F,OH,Cl)14 6,800.28
4.38%Nb Scheteligite  ? (Ca,Y,Sb,Mn)2(Ti,Ta,Nb,W)2O6(O,OH) 424.56
4.26%Nb Bismutotantalite   Bi(Ta,Nb)O4 436.32
4.00%Nb Haineaultite  ! (Na,Ca)5Ca(Ti,Nb)5(Si,S)12O34(OH,F)8•5(H2O) 1,557.11
3.75%Nb Tapiolite  * (Fe,Mn)(Ta,Nb)2O6 495.95
3.75%Nb Tundrite-(Nd)   Na3(Nd,La)4(Ti,Nb)2(SiO4)2(CO3)3O4(OH)•2(H2O) 1,240.10
3.72%Nb Zimbabweite   Na(Pb,Na,K)2(Ta,Nb,Ti)4As+++4O18 1,498.05
3.72%Nb Tantalaeschynite-(Y)   (Y,Ce,Ca)(Ta,Ti,Nb)2O6 499.75
3.67%Nb Bariomicrolite   Ba(Ta,Nb)2(O,OH)7 506.31
3.60%Nb Janhaugite   (Na,Ca)3(Mn++,Fe++)3(Ti++++,Zr,Nb)2Si4O15(OH,F,O)3 773.35
3.47%Nb Kupletskite   K2Na(Mn,Fe++)7(Ti,Nb)2Si8O26(OH)4F 1,337.34
3.39%Nb Kuzmenkoite-Mn  ! (K,Na)2(Mn,Fe)(Ti,Nb)4[Si4O12]2(OH)4•5(H2O) 1,095.05
3.37%Nb Sobolevite   Na11(Na,Ca)4(Mg,Mn)Ti++++4(Si4O12)(PO4)4O5F3 1,378.43
3.36%Nb Gutkovaite-Mn  ! CaK2Mn(Ti,Nb)4(Si4O12)2(O,OH)4•5(H2O) 1,243.09
3.21%Nb Alluaivite   Na19(Ca,Mn++)6(Ti,Nb)3(Si3O9)2(Si10O28)2Cl•2(H2O) 2,169.25
3.19%Nb Taseqite  ! Na12Sr3Ca6Fe3Zr3NbSi25O73(O,OH,H2O)3Cl2 3,403.45
3.19%Nb Kupletskite-(Cs)   (Cs,K)2Na(Mn,Fe++,Li)7(Ti,Nb)2Si8O26(OH)4F 1,455.85
3.06%Nb Hydroastrophyllite   (H3O,K)2Ca(Fe+++,Mn)5-6Ti2Si8O26(OH)4F 1,213.30
3.05%Nb Mosandrite   Na(Na,Ca)2(Ca,Ce,Y)4(Ti,Nb,Zr)(Si2O7)2(O,F)2F3 913.39
3.02%Nb Maoniupingite-(Ce)  ! (REE,Ca)4(Fe+++,Ti,Fe++,[])(Ti,Fe+++,Fe++,Nb)4Si4O22 1,228.90
2.97%Nb Oneillite  ! Na15Ca3Mn3Fe++3Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2 3,128.56
2.96%Nb Polyakovite-(Ce)  ! (Ce,La,Nd,Pr,Ca)4(Mg,Fe++)(Cr,Fe+++)2(Ti,Nb)2Si4O22 1,255.42
2.83%Nb Rinkite  ! Na(Na,Ca)2(Ca,Ce)4(Ti,Nb)(Si2O7)2(O,F)2 820.37
2.81%Nb Zirsilite-(Ce)  ! (Na,[])12(Ce,Na)3Ca6Mn3Zr3Nb(Si25O73)(OH)3(CO3)•H2O 3,310.41
2.73%Nb Labuntsovite-Mg  ! Na4K4(Ba,K)(Mg,Fe)1+xTi8(Si4O12)4(O,OH)8•10(H2O) 2,384.94
2.67%Nb Uranmicrolite   (U,Ca)2(Ta,Nb)2O6(OH) 695.81
2.62%Nb Carbokentbrooksite  ! (Na,[])12(Na,Ce)3Ca6Mn3Zr3Nb(Si25O73)(OH)3(CO3)•H2O 3,121.55
2.59%Nb Georgbarsanovite  ! Na12(Mn,Sr,REE)3Ca6Fe++3Zr3NbSi25O76Cl2•H2O 3,297.19
2.58%Nb Chivruaiite  ! Ca4(Ti,Nb)5[(Si6O17)2[(OH,O)5]•13-14H2O 1,585.23
2.55%Nb Zirconolite   (Ca,Ce)Zr(Ti,Nb,Fe+++)2O7 363.87
2.48%Nb Lavenite   (Na,Ca)2(Mn,Fe++)(Zr,Ti,Nb)Si2O7(O,OH,F) 374.22
2.41%Nb Yuksporite   (Sr,Ba)2K4(Ca,Na)14([],Mn,Fe){(Ti,Nb)4(O,OH)4[Si6O17]2[Si2O7]3}(H2O,OH)n,n~3 2,546.97
2.38%Nb Kentbrooksite  ! (Na,REE)15(Ca,REE)6Mn++Zr3NbSi25O74F2•2(H2O) 3,900.86
2.25%Nb Cesplumtantite   (Cs,Na,Ca)2(Pb,Sb+++,Sn)3Ta8O24 2,479.94
1.96%Nb Zircophyllite   K2(Na,Ca)(Mn,Fe++)7(Zr,Nb)2Si8O26(OH)4F 1,423.34
1.95%Nb Orthojoaquinite-(La)  ! Ba2Na(La,Ce)2Fe++Ti2Si8O26(OH,O,F)•H2O 1,429.39
1.91%Nb Golyshevite  ! (Na,Ca)10Ca9(Fe+++,Fe++)2Zr3NbSi25O72(CO3)(OH)3•H2O 2,925.34
1.85%Nb Sosedkoite   (K,Na)5Al2(Ta,Nb)22O60 5,030.82
1.84%Nb Ferrokentbrooksite  ! Na15Ca6(Fe,Mn)3Zr3NbSi25O73(O,OH,H2O)3(Cl,F,OH)2 3,231.96
1.70%Nb Nalivkinite  ! Li2NaFe++7Ti2Si8O24(OH)4F 1,309.53
1.68%Nb Feklichevite  ! Na11Ca9(Fe+++,Fe++)2Zr3Nb[Si25O73](OH,H2O,Cl,O)5 3,038.68
1.65%Nb Tundrite-(Ce)   Na2Ce2TiO2(SiO4)(CO3)2 614.89
1.60%Nb Cesstibtantite   (Cs,Na)SbTa4O12 579.81
1.50%Nb Surkhobite  ! KBa3Ca2Na2(Mn, Fe++,Fe+++)16Ti8(Si2O7)8O8(OH)4 (F,O,OH)8 3,523.22
1.36%Nb Kochite  ! Na2(Na,Ca)4Ca4(Mn,Ca)2Zr2Ti2(Si2O7)4(O,F)4F4 1,505.08
1.36%Nb Dualite  ! Na30(Ca,Na,Ce,Sr)12(Na,Mn,Fe,Ti)6Zr3Ti3MnSi51O144(OH,H2O,Cl)9 5,953.87
1.21%Nb Mogovidite  ! Na9(Ca,Na)6Ca6Fe2Zr3[ ]Si25O72(CO3)(OH)4 3,066.24
1.10%Nb Diversilite-(Ce)  ! Na2(Ba,K)6Ce2Fe++Ti3Si12O36(OH)3(OH,H2O)9 2,272.68
1.05%Nb Perraultite   (Na,Ca)2(Ba,K)2(Mn++,Fe++)8(Ti,Nb)4Si8O32(OH,F,O)6 1,766.01
0.95%Nb Vinogradovite   (Na,K)4Ti4(Si,Al)8O26•3(H2O,Na) 976.77
0.93%Nb Tapiolite-(Fe)   (Fe++,Mn++)(Ta,Nb)2O6 500.02
0.90%Nb Bobtraillite  ! (Na,Ca)13Sr11(Zr,Y,Nb)14Si42B6O132(OH)12•12H2O 6,318.09
0.86%Nb Lemoynite   (Na,K)2CaZr2Si10O26•5-6(H2O) 1,075.15
0.84%Nb Raslakite  ! Na15Ca3Fe3(Na,Zr)3Zr3(Si,Nb)(Si25O73)(OH,H2O)3(Cl,OH) 2,774.01
0.83%Nb Labuntsovite-Mn  ! Na4K4(Ba,K)(Mn,Fe)1+x(Ti,Nb)8[Si4O12]4(O,OH)8•n(H2O),n=10-12 2,232.12
0.82%Nb Natrolemoynite  ! Na4Zr2Si10O26•9(H2O) 1,128.53
0.79%Nb Jinshajiangite   Na2K5BaCa(Fe,Mn)8(Ti,Fe,Nb,Zr)4Si8O32(O,F,H2O)6 1,770.72
0.77%Nb Labuntsovite-Fe  ! Na4K4(Ba,K)2(Fe,Mg,Mn)1+xTi8(Si4O12)4(O,OH)8•10(H2O) 2,418.89
0.62%Nb Voronkovite  ! Na15(Na,Ca,Ce)3(Mn,Ca)3Fe3Zr3Si26O72(OH,O)4Cl•H2O 3,126.11
0.58%Nb Johnsenite-(Ce)  ! Na12(Ce,REE,Sr)3Ca6Mn3Zr3W(Si25O73)(CO3)(OH,Cl)2 3,374.09
0.50%Nb Phosphoinnelite  ! Ba4Na3Ti3Si4O14(PO4,SO4)2(O,F)3 1,301.51
0.49%Nb Manganokukisvumite  ! Na6MnTi4Si8O28•4(H2O) 1,130.79
0.41%Nb Makarochkinite  ! Ca2Fe++4Fe+++TiSi4BeAlO20 871.54
0.37%Nb Lemmleinite-Ba  ! Na2K2Ba1-xTi4(Si4O12)2(O,OH)4•5(H2O) 2,498.97
0.37%Nb Lakargiite  ! CaZrO3 177.87
0.30%Nb Dingdaohengite-(Ce)  ! (Ce,La)4Fe++(Ti,Fe++,Mg,Fe+++)2Ti2Si4O22 1,237.85
0.22%Nb Batisivite  ! (Ti,V,Cr)14Ba[Si2O7]O22 1,358.26
0.20%Nb Gramaccioliite-(Y)  ! (Pb,Sr)(Y,Mn)Fe2(Ti,Fe)18O38 1,822.46
0.20%Nb Ikranite  ! (Na,H3O)15(Ca,Mn,REE)6Fe+++2Zr3([ ],Zr)([ ],Si)Si24O66(O,OH)6Cl•2-3H2O 2,760.39
0.12%Nb Barytolamprophyllite   Ba2Na3(Fe+++,Ti)3(Si2O7)2(O,OH,F)4 807.31
0.08%Nb Faizievite  ! K2Na(Ca6Na)Ti4Li6Si24O66F2 2,384.24
0.03%Nb Dovyrenite  ! Ca6Zr[Si2O7]2(OH)4 728.49

(* - Mineral Name Is Not IMA Approved)
(! - New Dana classification added or changed from Danas New Mineralogy)
(? - IMA Discredited Mineral Species Name)

There are 214 minerals with Nb in the Mineralogy Database.
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  • Zirconium

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