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minéralogie élements Nb Niobium

Nb - Niobium - MÉTAL DE TRANSITION

2468°
4927°
92.90637
-1
2
3
4
5
41
Nb
[Kr] 4d4 5s1
2
8
18
12
1
1.6
6.7589
Synthétique
Radioactif
Liquide
Gazeux
Niobium Diagramme de configuration électronique
Diagramme de configuration électronique

Nom Niobium
Numéro atomique 41
Masse atomique 92.90637
Symbole Nb
Point de fusion 2468
Point d'ébullition 4927
Densité 8.57
Période 5
Groupe 5
Découverte 1801 Hatchett
Abondance 20
Radius 2.1
Electronégativité 1.6
Ionisation 6.7589
Nombre d'isotope 24
Configuration électronqiue [Kr] 4d4 5s1
Etats d'oxydation -1,2,3,4,5
Electron par niveau d'énergie 2,8,18,12,1

Minéral Dureté Densité Formule
Achalaite (Fe2+,Mn)(Ti,Fe3+,Ta)(Nb,Ta)2O8
Aeschynite-(Ce) 5.00 / 6.00 5.19 (Ce,Ca,Fe,Th)(Ti,Nb)2(O,OH)6
Aeschynite-(Nd) 5.00 / 6.00 4.60 Nd(Ti,Nb)2(O,OH)6
Aeschynite-(Y) 5.00 / 6.00 4.85 (Y,Ca,Th)(Ti,Nb)2(O,OH)6
Alluaivite 5.00 / 6.00 2.76 Na19(Ca,Mn2+)6(Ti,Nb)3Si26O74Cl·2H2O
Alsakharovite-Zn 5.00 / 5.00 2.90 NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4·7H2O
Andrianovite 5.00 / 5.00 3.02 Na12(K,Sr,Ce)3Ca6Mn3Zr3NbSi25O73(O,H2O,OH)5
Aspedamite 3.00 / 4.00 4.07 12(Fe3+,Fe2+)3Nb4[Th(Nb,Fe3+)12O42](H2O,OH)12
Baotite 6.00 / 6.00 4.42 Ba4(Ti,Nb,W)8O16(SiO3)4Cl
Bariomicrolite 4.50 / 5.00 5.68 (Ba, )2Ta2(O,OH)7
Bariopyrochlore 4.50 / 5.00 4.00 Ba2Nb2O7
Barytolamprophyllite 2.00 / 3.00 3.62 Na3(BaK)Ti3(Si2O7)2O2(OH)2
Batisivite 7.00 / 7.00 4.62 BaTi6(V,Cr)8Si2O29
Béhierite 7.00 / 7.50 7.81 TaBO4
Belkovite 6.00 / 7.00 4.16 Ba3Nb6(Si2O7)2O12
Belyankinite 2.00 / 3.00 2.32 Ca1-2(Ti,Zr,Nb)5O12·9H2O
Billwiseite 5.00 / 5.00 6.33 Sb3+5Nb3WO18
Bismutocolumbite 5.50 / 5.50 7.56 BiNbO4
Bismutomicrolite 5.00 / 5.00 6.83 (Bi,Ca)2Ta2(O,OH)7
Bismutopyrochlore 5.00 / 5.00 4.97 (Bi,U,Ca,Pb)1+xNb2O6(OH)·nH2O
Bismutotantalite 5.00 / 5.00 8.51 BiTaO4
Bobshannonite 4.00 / 4.00 3.79 Na2KBa(Mn,Na)8(Nb,Ti)4(Si2O7)4O4(OH)4(O,F)2
Bobtraillite 5.50 / 5.50 3.16 (Na,Ca)13Sr11(Zr,Y,Nb)14Si42B6O132(OH)12·12H2O
Bornemanite 3.50 / 4.00 3.47 Na6BaTi2Nb(Si2O7)2(PO4)O2(OH)F
Burovaite-Ca 2.73 (Na,K)4Ca2(Ti,Nb)8[Si4O12]4(OH,O)8·12H2O
Bykovaite 3.00 / 3.00 2.98 (Ba,Na,K)2(Na,Ti,Mn)4(Ti,Nb)2O2Si4O14(H2O,F,OH)2·3.5H2O
Byzantievite 4.50 / 5.00 4.25 Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4(PO4,SiO4)4(BO3)9O22[(OH),F]43·1.5H2O
Calciobetafite 4.50 / 5.50 4.20 (Ca,Na)2(Nb,Ti)2(O,OH)7
Calciomurmanite 2.85 (Na)2Ca(Ti,Mg,Nb)4[Si2O7]2O2(OH,O)2(H2O)4
Calciosamarskite 6.50 / 6.50 4.48 (Ca,Fe,Y)(Nb,Ta,Ti)O4
Calciotantite 6.50 / 6.50 7.46 CaTa4O11
Carbokentbrooksite 5.00 / 5.00 3.14 (Na)12(Na,Ce)3Ca6Mn3Zr3NbSi25O73(OH)3(CO3)·H2O
Carlosbarbosaite 4.00 (UO2)2Nb2O6(OH)2·2H2O
Ceriopyrochlore-(Ce) 5.00 / 5.50 4.13 (Ca,Ce,Y,Na)2Nb2(O,OH,F)7
Cesplumtantite 7.00 / 7.00 6.00 Cs2Pb3Ta8O24
Changbaiite 5.50 / 5.50 6.48 PbNb2O6
Charleshatchettite CaNb4O10(OH)2·8H2O
Chivruaiite 3.00 / 3.00 2.40 Ca4(Ti,Nb)5(Si6O17)2(OH,O)5·13-14H2O
Columbite-(Fe) 6.00 / 6.00 5.30 Fe2+Nb2O6
Columbite-(Mg) 6.50 / 6.50 5.04 MgNb2O6
Columbite-(Mn) 6.00 / 6.00 5.28 Mn2+Nb2O6
Dingdaohengite-(Ce) 6.00 / 6.00 4.83 (Ce3+,La)4Fe2+(Ti,Fe2+,Mg,Fe3+)2Ti2Si4O22
Diversilite-(Ce) 5.00 / 5.00 3.68 Na2Ba6Ce2Fe2+Ti3Si12O36(OH)10·nH2O
Dovyrenite 3.00 / 4.00 3.03 Ca6Zr(Si2O7)2(OH)4
Dualite 5.00 / 5.00 2.84 Na30(Ca,Na,Ce,Sr)12(Na,Mn,Fe,Ti)6Zr3Ti3MnSi51O144(OH,H2O,Cl)9
Edgarite 2.00 / 2.50 4.99 FeNb3S6
Ekplexite 1.00 / 1.00 3.63 (Nb,Mo,W)S2·(Mg1-xAlx)(OH)2+x
Epistolite 1.00 / 1.50 2.65 Na4TiNb2(Si2O7)2O2(OH)2·4H2O
Euxenite-(Y) 6.50 / 6.50 4.70 (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Eveslogite 5.00 / 5.00 2.85 (Ca,K,Na,Sr,Ba)48(Ti,Nb,Fe,Mn)12(OH)12Si48O144(OH,F,Cl)14
Faizievite 4.00 / 4.50 2.82 Li6K2Na(Ca6Na)Ti4(Si6O18)2(Si12O30)F2
Feklichevite 5.50 / 5.50 2.87 Na11Ca9(Fe3+,Fe2+)2Zr3Nb(Si25O73)(OH,H2O,Cl,O)5
Fergusonite-(Ce) 5.50 / 6.50 5.48 CeNbO4·0.3H2O
Fergusonite-(Ce)- 5.50 / 6.50 CeNbO4
Fergusonite-(Nd) 5.50 / 6.50 4.50 NdNbO4
Fergusonite-(Nd)- 5.50 / 6.50 NdNbO4
Fergusonite-(Y) 5.50 / 6.00 4.30 YNbO4
Fergusonite-(Y)- 5.50 / 6.50 YNbO4
Ferrokentbrooksite 5.00 / 6.00 3.06 Na15Ca6Fe2+3Zr3Nb(Si25O73)(O,OH,H2O)3(F,Cl)2
Fersmanite 5.50 / 5.50 3.44 Ca4(Na,Ca)4(Ti,Nb)4(Si2O7)2O8F3
Fersmite 4.00 / 4.50 4.69 (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6
Fluorcalciopyrochlore (Ca,Na)2(Nb,Ti)2O6F
Fluornatropyrochlore 4.00 / 4.50 5.28 (Na,Pb,Ca,REE,U)2Nb2O6F
Foordite 6.00 / 6.00 6.73 Sn2+Nb2O6
Franconite 4.00 / 4.00 2.72 NaNb2O5(OH)·3H2O
Georgbarsanovite 5.00 / 5.00 3.05 Na12(Mn,Sr,REE)3Ca6Fe2+3Zr3NbSi25O76Cl2·H2O
Gerasimovskite 2.00 / 2.00 2.52 Mn2+(Ti,Nb)5O12·9H2O
Gjerdingenite-Ca 5.00 / 5.00 2.79 K2Ca(Nb,Ti)4(Si4O12)2(O,OH)4·6H2O
Gjerdingenite-Fe 5.00 / 5.00 2.82 K2Fe(Nb,Ti)4(Si4O12)2(O,OH)4·6H2O
Gjerdingenite-Mn 5.00 / 5.00 2.93 K2Mn(Nb,Ti)4(Si4O12)2(O,OH)4·6H2O
Gjerdingenite-Na 5.00 / 5.00 2.71 (K,Na)2Na(Nb,Ti)4(Si4O12)2(OH,O)4·5H2O
Golyshevite 5.50 / 5.50 2.89 Na10Ca9Zr3Fe2SiNb(Si3O9)2(Si9O27)2(OH)3(CO3)·H2O
Gramaccioliite-(Y) 6.00 / 6.00 4.66 (Pb,Sr)(Y,Mn)Fe3+2(Ti,Fe3+)18O38
Gutkovaite-Mn 5.00 / 5.00 2.83 CaK2Mn(Ti,Nb)4(Si4O12)2(O,OH)4·5H2O
Haineaultite 3.00 / 4.00 2.28 (Na,Ca)5Ca(Ti,Nb)5Si12O34(OH,F)8·5H2O
Hochelagaite 4.00 / 4.00 2.85 CaNb4O11·8H2O
Hydroastrophyllite 3.00 / 4.00 3.15 (H3O,K)2CaFe2+5-6Ti2Si8O26(OH)4F
Hydropyrochlore 4.00 / 4.50 (H2O)2Nb2(O,OH)6(H2O)
Hydroxycalciopyrochlore 5.00 / 6.00 5.15 (Ca,Na,U)2(Nb,Ti)2O6(OH)
Hydroxymanganopyrochlore 5.40 (Mn,Th,Na,Ca,REE)2(Nb,Ti)2O6(OH)
Ikranite 5.00 / 5.00 2.82 (Na,H3O)15(Ca,Mn,REE)6Fe3+2Zr3Si24O66(O,OH)6Cl·nH2O
Ilímaussite-(Ce) 4.00 / 4.00 3.60 (Ba,Na)10K3Na4.5Ce5(Nb,Ti)6O6(Si12O36)(Si9O18)(O,OH)24
IMA2015-067 Ca2Mn2Nb6O19·20H2O
Intersilite 3.00 / 4.00 2.42 Na6Mn(Ti,Nb)Si10(O,OH)28·4H2O
Irtyshite 7.00 / 7.00 7.03 Na2Ta4O11
Ishikawaite 5.00 / 6.00 6.20 (U,Fe,Y)NbO4
Isolueshite 5.50 / 5.50 4.72 NaNbO3
Iwashiroite-(Y) 6.00 / 6.00 7.10 YTaO4
Ixiolite 6.00 / 6.50 6.94 (Ta,Mn,Nb)O2
Janhaugite 5.00 / 5.00 3.60 (Na,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2
Jedwabite 7.00 / 7.00 8.60 Fe7Ta3
Jinshajiangite 4.50 / 5.00 3.61 NaBaFe2+4Ti2(Si2O7)2O2(OH)2F
Joaquinite-(Ce) 5.00 / 5.50 3.62 NaBa2Fe2+Ti2Ce2(SiO3)8O2(OH)·H2O
Johnsenite-(Ce) 5.00 / 6.00 3.20 Na12Ce3Ca6Mn3Zr3WSi25O73(CO3)(OH)2
Johnwalkite 4.00 / 4.00 3.40 K(Mn2+,Fe3+)2(Nb,Ta)O2(PO4)2·2(H2O,OH)
Karnasurtite-(Ce) 2.00 / 2.00 2.89 CeTiAlSi2O7(OH)4·3H2O
Karupmøllerite-Ca 5.00 / 5.00 2.71 (Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4·7H2O
Kaskasite 1.00 / 1.00 3.83 (Mo,Nb)S2·(Mg1-xAlx)(OH)2+x
Kazanskyite 3.00 / 3.00 2.93 BaNa3Ti2Nb(Si2O7)2O2(OH)2·4H2O