| 'Unnamed ([Mn2-Ce]+[Al-Al-Mn] member of the Epidote Supergroup)' | (Mn2+Ce)(AlAlMn2+)O[Si2O7][SiO4](OH) or (Mn2+Ce)(AlAlMn3+)O[Si2O7][SiO4]O |
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| 'Unnamed ([Mn2-Nd]+[Al-Al-Mn] member of the Epidote Supergroup)' | (Mn2+Nd)(AlAlMn2+)O[Si2O7][SiO4](OH) or (Mn2+Nd)(AlAlMn3+)O[Si2O7][SiO4]O |
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| 'Uralite' | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
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| 'Uranium-bearing Zircon' | Zr(SiO4) |
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| Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
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| Uranosilite | UO3 · 7SiO2 |
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| 'Uranothorite' | (Th,U)SiO4 |
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| 'Ursilite' | (Mg/Ca)4(UO2)4(Si2O5)5.5(OH)5 · 13H2O |
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| Ussingite | Na2AlSi3O8OH |
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| Uvarovite | Ca3Cr2(SiO4)3 |
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| Uvite | CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3(OH) |
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| 'Vaalite' | (Mg,Fe)7(Si,Al,Fe)8O20(OH)4 · 2H2O |
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| 'Valencianite' | KAlSi3O8 |
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| 'Valuevite' | Ca(Mg,Al)3(Al3SiO10)(OH)2 |
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| 'Vanadinbronzite' | MgSiO3 |
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| 'Vanadio-laumontite' | CaAl2Si4O12 · 4H2O |
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| Vanadio-oxy-chromium-dravite | NaV3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O |
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| Vanadio-oxy-dravite | NaV3(Al4Mg2)(Si6O18)(BO3)3(OH)3O |
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| Vanadio-pargasite | NaCa2(Mg43+V)(Al2Si6)O22(OH)2 |
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| Vanadiocarpholite | Mn2+V3+Al(Si2O6)(OH)4 |
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| 'Vanadium-bearing Aegirine' | Na(Fe3+,V3+)Si2O6 |
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| 'Vanadium-bearing Muscovite' | K(Al,V)2(AlSi3O10)(OH)2 |
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| 'Vanadium-bearing phlogopite' | K(Mg,V3+)3(AlSi3O10)(OH)2 |
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| Vanadoallanite-(La) | (CaLa)(V3+AlFe2+)O[Si2O7][SiO4](OH) |
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| Vanadoandrosite-(Ce) | (Mn2+Ce)(V3+AlMn2+)O[Si2O7][SiO4](OH) |
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| Vanadomalayaite | CaV4+(SiO4)O |
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| 'Vanuxemite' | Na0.3Zn3((Si,Al)4O10)(OH)2 · 4H2O |
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| Varennesite | Na8Mn2Si10O25(OH,Cl)2 · 12H2O |
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| Västmanlandite-(Ce) | CaCe3(MgAl2Mg)[Si2O7][SiO4]3F(OH)2 |
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| Veblenite | KNa(Fe52+Fe43+Mn7)Nb4(Si2O7)2(Si8O22)2O6(OH)10(H2O)3 |
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| 'Verdite' | KAl2(AlSi3O10)(OH)2 |
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| Vermiculite | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O |
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| Verplanckite | Ba4Mn22+Si4O12(OH,H2O)3Cl3 |
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| Vertumnite | Ca4Al4Si4O6(OH)24 · 3H2O |
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| Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
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| 'Vesuvianite Group' | [X42][X38][X28][X1][Y1][Y24][Y38][T14][T2](Si2O7)4(SiO4)10(O10)2(O11)8 |
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| Vicanite-(Ce) | (Ca,Ce,La,Th)15As5+(As3+0.5,Na0.5)Fe3+Si6B4O40F7 |
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| 'Viellaurite (of Lienau)' | 5MnCO3 · 2Mn2SiO4 |
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| Vielleaureite-(Ce) | (Mn2+Ce)(MgAlMn2+)F[Si2O7][SiO4](OH) |
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| Vigrishinite | NaZnTi4(Si2O7)2O3(OH)(H2O)4 |
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| Vinogradovite | Na4Ti4(Si2O6)2[(Si,Al)4O10]O4 · (H2O,Na,K)3 |
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| 'Violan' | CaMgSi2O6 |
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| Virgilite | LiAlSi2O6 |
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| 'Viridine' | (Al,Mn3+)2SiO4O |
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| Vishnevite | (Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2O |
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| Vistepite | SnMn4B2Si4O16(OH)2 |
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| Vittinkiite | MnMn3Mn[Si5O15] |
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| Vladimirivanovite | Na6Ca2(Al6Si6O24)(SO4,S3,S2,Cl)2 · H2O |
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| Vladykinite | Na3Sr4(Fe2+Fe3+)Si8O24 |
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| Vlasovite | Na2ZrSi4O11 |
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