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Toturite

Ca3Sn2(SiFe3+2)O12

Tounkite

(Na,Ca,K)8(Si6Al6)O24(SO4)2Cl·0.5H2O

Trabzonite

Ca4[Si3O9(OH)](OH)

Tranquillityite

Fe2+8Ti3Zr2Si3O24

Traskite

Ba21Ca(Fe2+,Mn,Ti)4(Ti,Fe,Mg)12(Si12O36)(Si2O7)6(O,OH)30Cl6·14H2O

Trattnerite

Fe3+2(Mg3Si12)O30

Tsumgallite

GaO(OH)

Trébeurdenite

Fe2+2Fe3+4O2(OH)10(CO3)·3H2O

Trebiskyite

Na3Mg2[TiV9O28]·22H2O

Trechmannite

AgAsS2

Trembathite

Mg3B7O13Cl

Tremolite

◻Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2

Trevorite

NiFe3+2O4

Triangulite

Al3(UO2)4(PO4)4(OH)5·5H2O

Triazolite

NaCu2(N3C2H2)2(NH3)2Cl3·4H2O

Tridymite

SiO2

Trigonite

Pb3Mn2+(AsO3)2(AsO2OH)

Trikalsilite

K2Na(AlSiO4)3

Trilithionite

KLi1.5Al1.5(Si3Al)O10F2

Trimounsite-(Y)

Y2Ti2SiO9

Trinepheline

NaAlSiO4

Triphylite

LiFe2+(PO4)

Triplite

Mn2+2(PO4)F

Triploidite

Mn2+2(PO4)(OH)

Trippkeite

Cu2+As3+2O4

Tripuhyite

Fe3+Sb5+O4

Tristramite

(Ca,U4+,Fe3+)(PO4,SO4)·2H2O

Tritomite-(Ce)

Ce5(SiO4,BO4)3(OH,O)

Tritomite-(Y)

Y5(SiO4,BO4)3(O,OH,F)

Trögerite

(H3O)(UO2)(AsO4)·3H2O

Trogtalite

CoSe2

Troilite

FeS

Trolleite

Al4(PO4)3(OH)3

Trona

Na3(HCO3)(CO3)·2H2O

Truscottite

Ca14Si24O58(OH)8·2H2O

Trüstedtite

Ni2+Ni3+2Se4

Tsangpoite

Ca5(PO4)2(SiO4)

Tsaregorodtsevite

N(CH3)4Si4(SiAl)O12

Tschaunerite

(Fe2+)(Fe2+Ti4+)O4

Tschermakite

◻Ca2(Mg3Al2)(Si6Al2)O22(OH)2

Tschermigite

(NH4)Al(SO4)2·12H2O

Tschernichite

CaAl2Si6O16·8H2O

Tschörtnerite

Ca4(K,Ca,Sr,Ba)3Cu3Al12Si12O48(OH)8·20H2O

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

Tsikourasite

Mo3Ni2P1+x (x < 0.25)