Mineral Species containing Niobium (Nb)

Element Properties, Isotopic Compositions for Niobium

**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

Niobium (Nb) Minerals sorted by Descending Weight Percent

Click here for List sorted by Mineral Name

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**214 Minerals containing Niobium (Nb) sorted by Descending Weight Percent**
% Nb	Mineral Name	Chemical Formula	MW
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

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(? - IMA Discredited Mineral Species Name)
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