| '(Nb,Fe)-substituted anatase' | (Ti0.5Nb0.25)Σ1.00O2 |
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| Achalaite | (Fe2+,Mn)(Ti,Fe3+,Ta)(Nb,Ta)2O8 |
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| Aeschynite-(Ce) | (Ce,Ca,Fe,Th)(Ti,Nb)2(O,OH)6 |
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| Aeschynite-(Nd) | (Nd,Ln,Ca)(Ti,Nb)2(O,OH)6 |
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| Aeschynite-(Y) | (Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6 |
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| Alluaivite | Na19(Ca,Mn)6(Ti,Nb)3Si26O74Cl · 2H2O |
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| 'Alpha-Wiikite' | Ca3UNb3O12(OH)3 |
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| Alsakharovite-Zn | NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4 · 7H2O |
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| 'Aluminobetafite (of Kawai)' | A2Nb2(O,OH)6Z |
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| 'Alumolyndochite' | (Ce,Ca,Fe,Th,Al)(Ti,Nb)2(O,OH)6 |
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| Andrianovite | Na12(K,Sr,Ce)3Ca6Mn3Zr3Nb(Si25O73)(O,H2O,OH)5 |
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| 'Ashanite' | (Nb,Ta,U,Fe,Mn)4O8 |
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| Aspedamite | ◻ 12(Fe3+2Fe2+)Nb4(ThNb9Fe3+2 Ti4+O42)(H2O)9(OH)3 |
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| Baotite | Ba4(Ti,Nb,W)8O16(SiO3)4Cl |
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| 'Barian Betafite (of Mironov & Gofman)' | (◻,U,Ba,Ca)2(Ti,Nb,Fe)B2O6OH1 |
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| Barwoodite | Mn62+Nb5+(SiO4)2O3(OH)3 |
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| Béhierite | (Ta5+,Nb5+)(BO4) |
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| Belkovite | Ba3(Nb,Ti)6(Si2O7)2O12 |
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| Belyankinite | Ca1-2(Ti,Nb)5O12 · 9H2O (?) |
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| 'Beta-Wiikite' | Y4Nb3O12(OH)3 |
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| 'Betafite (of Hogarth 1977)' | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
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| 'Betafite Group' | A2(Ti,Nb)2O6Z |
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| Billwiseite | Sb53+Nb3WO18 |
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| 'Bismuthian Stibiotantalite' | (Sb,Bi)(Ta,Nb)O4 |
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| Bismutocolumbite | Bi(Nb,Ta)O4 |
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| 'Bismutopyrochlore (of Chukanov et al.)' | (Bi,Ca,U,Pb)2-xNb2(O,OH)6(OH) |
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| Bobshannonite | Na2KBa(Mn,Na)8(Nb,Ti)4(Si2O7)4O4(OH)4(O,F)2 |
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| Bobtraillite | (Na,Ca)13Sr11(Zr,Y,Nb)14(Si3O9)10(H2BSi2O9)6 · 12H2O |
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| Bornemanite | Na6BaTi2Nb(Si2O7)2(PO4)O2(OH)F |
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| Burovaite-Ca | (Na,K)4Ca2(Ti,Nb)8(Si4O12)4(OH,O)8 · 12H2O |
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| Bykovaite | (Ba,Na,K)2(Na,Ti,Mn)4(Ti,Nb)2(Si2O7)2O2(H2O,F,OH)2 · 3.5H2O |
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| Byzantievite | Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4, SiO4)]4(BO3)9O22[(OH),F]43(H2O)1.5 |
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| 'Calciobetafite (of Mazzi & Munno)' | (Ca,Na)2(Nb,Ti)2(O,OH)7 |
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| 'Calciolyndochite' | (Ce,Ca,Fe,Th)(Ti,Nb)2(O,OH)6 |
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| Calciomurmanite | (Na,◻)2Ca(Ti,Mg,Nb)4[Si2O7]2O2(OH,O)2(H2O)4 |
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| Calciosamarskite | (Ca,Fe3+,Y)2(Nb,Ta,Ti)2O8 |
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| Carbokentbrooksite | (Na3Na3Na3Na3Na3)Ca6(VMn32+)Zr3[Si3O9]2[Si9O27SiO][Si9O27Nb(OH)3](CO3)(H2O) |
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| Carlosbarbosaite | (UO2)2Nb2O6(OH)2 · 2H2O |
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| 'Ceriopyrochlore (of Hogarth 1977)' | A2Nb2(O,OH)6Z |
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| Cesiokenopyrochlore | ◻Nb2(O,OH)6(Cs,◻) |
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| Changbaiite | PbNb2O6 |
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| Charleshatchettite | CaNb4O10(OH)2 · 8H2O |
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| Chivruaiite | Ca4(Ti,Nb)5(Si6O17)2(OH,O)5 · 13-14H2O |
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| Columbite-(Fe) | Fe2+Nb2O6 |
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| Columbite-(Mg) | (Mg,Fe,Mn)(Nb,Ta)2O6 |
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| Columbite-(Mn) | Mn2+Nb2O6 |
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| 'Davidite-(Y)' | (La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical) |
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| Edgarite | FeNb3S6 |
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| Ekebergite | ThFeNb2O8 |
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| Ekplexite | (Nb,Mo,W)S2 · (Mg1-xAlx)(OH)2+x |
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