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- niobium
Minerals containing niobium
175 minerals
Niobium — element
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Kimrobinsonite | (Ta,Nb)(OH)₅-₂x(O,CO₃)x ; x near ₁.₂ | — | — | — |
| Kobeite-(Y) | (REE,Fe,U)₃ Zr(Ti,Nb)₃ O₁₂ | — | — | — |
| Komarovite | (Ca,Mn)Nb₂[O₃|Si₂O₇] * 3.₅H₂O | — | — | — |
| Koragoite | (Mn²⁺,Fe³⁺)₃(Nb,Ta,Ti)₂(Nb,Mn)₂(W,Ta)₂O₂₀ | Monoclinic | — | — |
| Laachite | (Ca,Mn)₂Zr₂Nb₂TiFeO₁₄ | Monoclinic | — | — |
| Latrappite | Ca₂NbFe³⁺O₆ | — | — | — |
| Laurentianite | [NbO(H₂O)]₃(Si₂O₇)₂[Na(H₂O)₂]₃ | Trigonal | — | — |
| Lepkhenelmite-Zn | Ba₂Zn(Ti,Nb)₄(Si₄O₁₂)₂(O,OH)₄·7H₂O | — | — | — |
| Liandratite | U(Nb,Ta)₂O₈ | Trigonal | 3.5 | — |
| Lueshite | NaNbO₃ | — | — | 4.47 g/cm³ |
| Magnesiohongruiite-(Fe³⁺) | (Mg₂Fe³⁺)Fe³⁺NbO₇(OH) | Hexagonal | — | — |
| Manganbelyankinite | (Mn,Ca)(Ti,Nb)₅O₁₂ * 9H₂O | Amorphous | — | — |
| Manganokaskasite | (Mo,Nb)S₂·(Mn₁₋ₓAlₓ)(OH)₂₊ₓ | Trigonal | — | — |
| Maoniupingite-(Ce) | (Ce,Ca)₄(Fe³⁺,Ti,Fe²⁺,☐)(Ti,Fe³⁺,Fe²⁺,Nb)₄Si₄O₂₂ | Monoclinic | — | — |
| Marianoite | Na₂Ca₄(Nb,Zr)₂(Si₂O₇)₂(O,F)₄ | — | — | — |
| Melcherite | Ba₂Na₂Mg[Nb₆O₁₉]·6H₂O | Trigonal | — | — |
| Menezesite | Ba₂MgZr₄(BaNb₁₂O₄₂) * ₁₂H₂O | Cubic | — | — |
| Mongolite | Ca₄Nb₆Si₅O₂₄(OH)₁₀·6H₂O | Tetragonal | — | — |
| Murataite-(Y) | (Y,Na)₆Zn(Zn,Fe³⁺)₄(Ti,Nb,Na)₁₂O₂₉(O,F,OH)₁₀F₄ | Cubic | — | — |
| Nacareniobsite-(Ce) | (Ca₃REE)Na₃Nb(Si₂O₇)₂(OF)F₂ | Monoclinic | — | — |
| Nacareniobsite-(Nd) | Ca₂(CaNd)Na₃Nb(Si₂O₇)₂(OF)F₂ | Monoclinic | — | — |
| Nacareniobsite-(Y) | Na₃Ca₃YNb(Si₂O₇)₂OF₃ | Monoclinic | — | — |
| Natroniobite | NaNbO₃ | — | — | 4.47 g/cm³ |
| Nechelyustovite | (Na☐)☐₂Ba₄Ti₄Nb₄(Na₁₁☐)Ti₄(Si₂O₇)₈O₈(OH)₈(H₂O)₁₂ | Monoclinic | — | — |
| Nenadkevichite | (Na,☐)₈Nb₄(Si₄O₁₂)₂(O,OH)₄·8H₂O | Orthorhombic | — | — |
| Neskevaaraite-Fe | NaK₃Fe(Ti,Nb)₄(Si₄O₁₂)₂(O,OH)₄·6H₂O | — | — | — |
| Nioboaeschynite-(Ce) | (Ce,Ca)(Nb,Ti)₂(O,OH)₆ | Orthorhombic | — | — |
| Nioboaeschynite-(Y) | (Y,REE,Ca,Th,Fe)(Nb,Ti,Ta)₂(O,OH)₆ | Orthorhombic | — | — |
| Niobocarbide | (Nb,Ta)C | Cubic | — | — |
| Nioboholtite | (Nb₀.₆☐₀.₄)Al₆BSi₃O₁₈ | Orthorhombic | — | — |
| Nioboixiolite-(Fe²⁺) | Nb₂Fe²⁺O₆ | Orthorhombic | — | — |
| Nioboixiolite-(◻) | (Nb₀,₈☐₀,₂)⁴⁺O₂ | Orthorhombic | — | — |
| Niobokupletskite | K₂NaMn²⁺₇(Nb,Ti)(Si₄O₁₂)₂O₂(OH)₄(O,F) | — | — | — |
| Niobophyllite | (K,Na)₃(Fe,Mn)₆(Nb,Ti)₂Si₈(O,OH,F)₃₁ | — | — | — |
| Niocalite | Ca₇Nb(Si₂O₇)₂O₃F | Monoclinic | — | 3.17 g/cm³ |
| Normandite | NaCa(Mn,Fe)(Ti,Nb,Zr)(Si₂O₇)OF | Monoclinic | — | — |
| Oboniobite | Mg₄Nb₂O₉ | Trigonal | — | 4.35 g/cm³ |
| Olmsteadite | KFe²⁺₂(Nb₅+,Ta₅+)(PO₄)₂O₂ * 2H₂O | — | 4.0 | — |
| Oneillite | Na₁₅Ca₃Mn₃Fe²⁺₃Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(OH,Cl)₂ | Trigonal | — | — |
| Organovaite-Mn | K₂MnNb₄(Si₄O₁₂)₂O₄·5-7H₂O | — | — | — |
| Organovaite-Zn | K₂Zn(Nb,Ti)₄(Si₄O₁₂)₂(O,OH)₄·6H₂O | — | — | — |
| Oxycalciopyrochlore | Ca₂Nb₂O₆O | Orthorhombic | 5.0 | 4.41 g/cm³ |
| Oxynatromicrolite | (Na,Ca,U)₂(Ta,Nb)₂O₆(O,F) | Cubic | — | — |
| Oxyplumbopyrochlore | Pb₂Nb₂O₆O | Cubic | — | — |
| Paratsepinite-Ba | (Ba,Na,K)₂₋ₓ(Ti,Nb)₂(Si₄O₁₂)(OH,O)₂·4H₂O | — | — | — |
| Paratsepinite-Na | (Na,Sr,K,Ca)₂(Ti,Nb)₂(Si₄O₁₂)(O,OH)₂·4H₂O | — | — | — |
| Pauloabibite | NaNbO₃ | Trigonal | — | — |
| Peterandresenite | Mn₄Nb₆O₁₉·14H₂O | Monoclinic | — | — |
| Petscheckite | UFe(Nb,Ta)₂O₈ | — | — | — |
| Polyakovite-(Ce) | (Ce,Ca)₄(Mg,Fe²⁺)(Cr³⁺,Fe³⁺)₂(Ti,Nb)₂(Si₂O₇)₂O₈ | Monoclinic | — | — |
| Polycrase-(Y) | Y(Ti,Nb)₂(O,OH)₆ | — | — | — |
| Písekite-(Y) | (Y,As,Ca,Fe,U)(Nb,Ti,Ta)O₄ | — | — | — |
| Qitianlingite | Fe²⁺₂Nb₂W⁶⁺O₁₀ | Orthorhombic | — | — |
| Rankamaite | (Na,K)₃(Ta,Nb,Al)₁₁(O,OH)₃₁ | Orthorhombic | — | — |
| Raslakite | Na₁₅Ca₃Fe²⁺₃(Na,Zr)₃Zr₃(Si,Nb)[(Si₃O₉)₂(Si₉O₂₇)₂SiO](OH,H₂O)₃(Cl,OH) | Trigonal | — | — |
| Rippite | K₂(Nb,Ti)₂(Si₄O₁₂)O(O,F) | Tetragonal | — | — |
| Rossovskyite | (Fe³⁺,Ta)(Nb,Ti)O₄ | Monoclinic | — | — |
| Roumaite | (Nb,Ti)(Ca,Na,☐)₃(Ca,REE)₄(Si₂O₇)₂(OH)F₃ | Monoclinic | — | — |
| Saamite | Ba☐TiNbNa₃Ti(Si₂O₇)₂O₂(OH)₂(H₂O)₂ | Triclinic | 3.0 | — |
| Sakhanaiskite | (Fe²⁺Ti)Nb₂O₈ | Monoclinic | — | — |
| Samarskite-(Y) | YFe³⁺Nb₂O₈ | Orthorhombic | — | — |
| Samarskite-(Yb) | YbNbO₄ | Monoclinic | — | 7.68 g/cm³ |
| Schiavinatoite | (Nb,Ta)(BO₄) | Tetragonal | — | — |
| Shcherbakovite | (K,Ba)KNa(Ti,Nb)₂(Si₄O₁₂)O₂ | — | — | — |
| Shkatulkalite | Na₁₀MnTi₃Nb₃(Si₂O₇)₆(OH)₂F·12H₂O | Monoclinic | — | — |
| Siudaite | Na₈(Mn²⁺₂Na)Ca₆(Fe³⁺Mn²⁺)₃Zr₃NbSi₂₄(Si,☐,Ti)O₇₄(OH)₂Cl·5H₂O | — | — | — |
| Sosedkoite | (K,Na)₅Al₂(Ta,Nb)₂₂O₆₀ | — | — | — |
| Stefanweissite | (Ca,REE)₂Zr₂(Nb,Ti)(Ti,Nb)₂Fe²⁺O₁₄ | Orthorhombic | — | — |
| Stibiocolumbite | SbNbO₄ | Orthorhombic | — | 5.62 g/cm³ |
| Tanteuxenite-(Y) | Y(Ta,Nb,Ti)₂(O,OH)₆ | — | — | — |
| Tapiolite-(Fe) | (Fe,Mn)(Ta,Nb)₂O₆ | Tetragonal | — | — |
| Taseqite | Na₁₂Sr₃Ca₆Fe₃Zr₃Nb[(Si₃O₉)₂(Si₉O₂₇)₂SiO]Cl₂(O,OH,H₂O)₃ | Trigonal | — | — |
| Tazzoliite | Ba₂CaSr₀.₅Na₀.₅Ti₂Nb₃SiO₁₇[PO₂(OH)₂]₀.₅ | Orthorhombic | — | — |
| Ternovite | MgNb₄O₁₁·8-12H₂O | Monoclinic | — | — |
| Thoreaulite | (Sn²⁺,Pb)(Ta,Nb)₂O₆ | — | — | — |
| Tienshanite | KNa₃Na₆Ca₂Ba₆Mn₆(Ti₄+,Nb)₆B₁₂Si₃₆O₁₁₄(O,OH,F)₁₁ | Hexagonal | — | — |
| Tsepinite-Ca | (Ca,K,Na)₂₋ₓ(Ti,Nb)₂(Si₄O₁₂)(OH,O)₂·4H₂O | — | — | — |
| Tsepinite-K | (K,Ba,Na)₂(Ti,Nb)₂(Si₄O₁₂)(OH,O)₂·3H₂O | — | — | — |
| Tsepinite-Na | (Na,H₃O,K,Sr,Ba,☐)₂(Ti,Nb)₂(Si₄O₁₂)(OH,O)₂·3H₂O | — | — | — |
| Tsepinite-Sr | (Sr,Ba,K)(Ti,Nb)₂(Si₄O₁₂)(OH,O)₂·3H₂O | Monoclinic | — | — |