| Sulfhydrylbystrite | Na5K2Ca[Al6Si6O24](S5)2(SH) |
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| Tamaite | (Ca,K,Ba,Na)3-4Mn24(Si,Al)40(O,OH)112 · 21H2O |
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| 'Tarasovite' | near NaKAl11Si13O40(OH)9 · 3H2O |
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| Telyushenkoite | (Cs,Na,K)Na6[Be2Al3Si15O39]F2 |
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| 'Tibiscumite' | (Ca,Na,K)0.7(Al,Fe,Mg)2(Si,Al)4O10(OH)2 · 0.8H2O |
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| Tounkite | (Na,Ca,K)8(Si6Al6)O24(SO4)2Cl · 0.5H2O |
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| Trikalsilite | K2NaAl3(SiO4)3 |
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| 'UM1936-01-F:AlCaHMgNaS' | (Na,K)9(Mg,Ca)7(Al,Fe)13[(S,Si)O4]4(F,Cl)36(OH)10 · 11H2O |
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| 'UM1958-03-SiO:AlCaFeKNa' | (K,Na)4Ca2(Al,Fe)(Si,Al)6(O,OH,F)18 · 0.6NaCl |
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| 'UM1967-09-SiO:AlHKNa' | (K,Na)AlSi2O6 · H2O |
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| 'UM1969-12-SiO:AlFeHK' | (Na,Ca,K)(Fe,Mg)Al2Si4O13 · 2H2O |
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| 'UM1976-25-SiO:AlKNa' | (K,Na)AlSi5O12 |
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| 'UM1984-35-SiO:AlCaFeKMg' | ~(K,Na)2Ca2Mg2(Fe,Mg)3(Si,Al)12O30 |
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| 'UM1987-18-SiO:AlCaHKNa' | (K,Ca,Na)7(Si17Al7)O48 · 14H2O (?) |
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| 'UM1989-34-SiO:FeKMgMnNa' | (K,Na,Sr)(Na,Ca)1.3(Mg,Na,Mn)2(Mg,Fe,Al)3(Si,Al)12O30 |
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| 'UM1990-61-SiO:AlCaHKMnNa' | (Ca,Na,K)3Mn24(Si,Al)40O100 · 30H2O |
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| 'UM1990-78-SiO:CaClFeHKNaZr' | (H3O)7(Na,K)5(Ca,Sr,Mn)6Zr3[Si3O7(O,OH)2]2[Si9O23(O,OH)4]2[SiNaFe(Zr,Ti,Al,Nb)◻]Cl1.5(O,OH) |
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| 'UM1990-79-SiO:CaClFeHMnNaNbREEZr' | Na14Ca5(Mg,Ca,Mn)Zr3(Si3O9)2(Si9O27)2(Si,Nb,Al,Zr)2(Fe,Zr)3(Mn,Na,Ce,La,Y)(Na,H2O,K,Sr)(OH)4-5(OH,Cl) |
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| 'UM1990-80-SiO:CaFeHMnNaNbREEZr' | Na14Ca4(Mn,Ca)2Zr3(Si3O9)2(Si9O27)2(Si,Nb,Al,Zr)2(Fe,Mn,Al,Ti)3(Na,Ce,La,Y,Mn)(Na,H2O,K,Sr)(OH)7-8 |
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| 'UM1990-82-SiO:AlBaCaHKNaSr' | (K,Na,Ba,Sr,Ca)Al3Si5O16 · 4.5H2O |
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| 'UM1990-83-SiO:AlBaCaHKNaSr' | (Ba,K,Sr,Na,Ca)Al4Si4O16 · 7H2O |
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| 'UM1990-84-SiO:AlBaCaHKNaSr' | (Na,Ba,K,Sr,Ca)Al4Si4O16 · 4H2O |
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| 'UM1990-86-SiO:AlFeHKMnNa' | (K,Na)3(Fe3+,Al,Mn)3Si8O22 · 7H2O |
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| 'UM1996-41-SiO:CCaCeFFeNbPbThTiU' | ~(Ce,Ca,K,Na,Ba)Pb2(Fe,Al,Mn,Zn)(Nb,Ti,Zr,Th,U)5(SiO2)6(CO2)9(F,OH,O) |
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| 'UM1999-33-SiO:AlHKNa' | K7Na5Al12Si20O64 · 24H2O |
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| 'UM2002-40-SiO:AlCaHKMgNa' | (Mg,Ca,Na,K)7.5(Al12.8Si51.2)O128 · 65H2O |
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| 'UM2003-39-SiO:CaClFeHHfNaNbSrTaTiZr' | Na12(Na,K,Mn,Sr)2Ca5(Ca,Mn)(Zr,Hf)3(Fe,◻,Ta)3(Si,Nb,W)(Si,Al,Ti)Si24O72(OH,O)3.5Cl · 1.2H2O |
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| 'UM2007-45-PO:AlHCaKNaSiTh' | ~[X,Na,K,Ca,Mg]Th2(P,Si,Al)O4 · 3H2O |
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| 'UM2009-23-SiO:AlCCaClHKNaS' | (Na,Ca)24K10[(Si,Al)60O120](SO4)5.6Cl1.5(CO3)0.4 · 11H2O |
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| Umbrianite | K7Na2Ca2[Al3Si10O29]F2Cl2 |
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| 'Unnamed (Ca analogue of Merlinoite)' | (Ca,K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2O ? |
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| 'Unnamed (Ca-deficient Mosandrite)' | (Ca1.2REE0.9Th0.1Zn0.1Al0.1Na0.2K0.1)((H2O)2◻)(Ti,Nb)(Si2O7)2(OH,F,Cl)2(H2O)2 |
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| 'Unnamed (F-dominant analogue of Ferri-kaersutite)' | (Na,K)Ca2[Mg3(Fe3+,Fe2+)Ti](Si6Al2O22)(F,O)2 |
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| 'Unnamed (New Ordered Member of the Alkali Feldspar Series)' | KNa(Si6Al2)O16 |
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| 'Unnamed (Sodium Silicate)' | ~(Na,Ca,K,Mg)3(Si,Al,Fe)7O14 |
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| Vinogradovite | Na4Ti4(Si2O6)2[(Si,Al)4O10]O4 · (H2O,Na,K)3 |
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| Vishnevite | (Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2O |
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| Wenkite | (Ba,K)4(Ca,Na)6[(Si,Al)20O39(OH)2](SO4)3 · 0.5H2O |
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| Wonesite | (Na,K)(Mg,Fe,Al)6((Al,Si)4O10)2(OH,F)4 |
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