Taaffeite Mg3Al8BeO16
Tacharanite Ca12Al2Si18O33(OH)36
Tachyhydrite CaMg2Cl6·12(H2O)
Tadzhikite-(Ce) Ca4(Ce,Y)2(Ti,Al,Fe+++,[ ])2[Si4B4O22](OH)2
Tadzhikite-(Y) Ca4(Y,Ce)2(Ti,Al,Fe+++,[ ])2[Si4B4O22](OH)2
Taenite Antitaenite
gamma-(Fe,Ni)
Taikanite (Ba,Sr)2Mn+++2Si4O12
Taimyrite (Pd,Cu,Pt)3Sn
Tainiolite Taeniolite
KLiMg2Si4O10F2
Takanelite Wad
(Mn++,Ca)Mn++++4O8·(H2O)
Takedaite IMA1993-049
Ca3(BO3)2
Takeuchiite Mg2Mn+++O2(BO3)
Takovite Eardleyite-Zn
Ni6Al2(OH)16(CO3,OH)·4(H2O)
Talc Steatite - massive
Soapstone
Magnesium Talc
Kerolite
Mg3Si4O10(OH)2
Talmessite Ca2Mg(AsO4)2·2(H2O)
Talnakhite Cu9(Fe,Ni)8S16
Tamaite IMA1999-011
(Ca,K,Ba,Na)3-4Mn24(Si,Al)40(O,OH)112·21(H2O)
Tamarugite NaAl(SO4)2·6(H2O)
Tancoite HNa2LiAl(PO4)2(OH)
Taneyamalite (Na,Ca)(Mn++,Mg)12[(Si,Al)6O17]2(O,OH)10
Tangeite Calciovolborthite
CaCu(VO4)(OH)
Tantalaeschynite-(Y) (Y,Ce,Ca)(Ta,Ti,Nb)2O6
Tantalcarbide TaC
Tantalowodginite (Mn2,[ ])4Ta4Ta8O32
Tantalum Ta
Tanteuxenite-(Y) Delorenzite
(Y,Ce,Ca)(Ta,Nb,Ti)2(O,OH)6
Tantite Ta2O5
Tapiolite (Fe,Mn)(Ta,Nb)2O6
Taramellite Ba4(Fe+++,Ti,Fe++,Mg)4(B2Si8O27)O2Clx (x=0 to 1)
Taramite Aluminotaramite
Na(CaNa)Fe++3AlFe+++[Si6Al2O22](OH)2
Taranakite K3Al5(HPO4)6(PO4)2·18(H2O)
Tarapacaite K2CrO4
Tarbuttite Salmoite
Zn2(PO4)(OH)
Tatarskite Ca6Mg2(SO4)2(CO3)2Cl4(OH)4·7(H2O)
Tatyanaite (Pt,Pd,Cu)9Cu3Sn4
Tausonite SrTiO3
Tavorite LiFe+++(PO4)(OH)
Tazheranite CaTiZr2O8
Teallite PbSnS2
Teepleite Na2B(OH)4Cl
Tegengrenite IMA1999-002
(Mg,Mn++)2Sb+++++0.5(Mn+++,Si,Ti)0.5O4
Teineite CuTeO3·2(H2O)
Telargpalite (Pd,Ag)3Te
Tellurantimony Sb2Te3
Tellurite TeO2
Tellurium Te
Tellurobismuthite Bi2Te3
Tellurohauchecornite Ni9BiTeS8
Telluronevskite IMA1993-027a
Bi3TeSe2
Telluropalladinite Pd9Te4
Temagamite Pd3HgTe3
Tengchongite CaU++++++6Mo++++++2O25·12(H2O)
Tengerite-(Y) Y2(CO3)3·2-3H2O
Tennantite Julianite
Binnite
(Cu,Fe)12As4S13
Tenorite Melanochalcite
Melaconite
Black Copper Oxide
CuO
Tephroite Mn2SiO4
Terlinguaite Hg+Hg++ClO
Ternesite IMA1995-015
Ca5(SiO4)2SO4
Ternovite IMA1992-044
(Mg,Ca)Nb4O11-n(H2O) where n ~ 10
Terranovaite IMA1995-026
(Na,Ca)8(Si68Al12)O160-29(H2O)
Terskite Na4Zr(H4Si6O18)
Tertschite Ca4B10O19·20(H2O)
Teruggite Ca4MgAs2B12O22(OH)12·12(H2O)
Teschemacherite (NH4)HCO3
Testibiopalladite PdTe(Sb,Te)
Tetra-auricupride AuCu
Tetra-ferri-annite Ferribiotite
Ferri-annite
Ferriannite
Monrepite
K(Fe++,Mg)3(Fe+++,Al)Si3O10(OH)2
Tetra-ferriphlogopite Ferri-phlogopite
KMg3Fe+++Si3O10(OH)2
Tetradymite Bi2Te2S
Tetraferroplatinum PtFe
Tetrahedrite (Cu,Fe)12Sb4S13
Tetranatrolite Na2[Al2Si3O10]·2(H2O)
Tetrarooseveltite BiAsO4
Tetrataenite FeNi
Tetrawickmanite Mn++Sn++++(OH)6
Thadeuite (Ca,Mn++)(Mg,Fe++,Mn+++)3(PO4)2(OH,F)2
Thalcusite TlCu3FeS4
Thalenite-(Y) Y3Si3O10(OH)
Thalfenisite Tl6(Fe,Ni,Cu)25S26Cl
Thaumasite Ca3Si(CO3)(SO4)(OH)6·12(H2O)
Theisite Cu5Zn5[(As+++++,Sb+++++)O4]2(OH)14
Thenardite Na2SO4
Theoparacelsite IMA1998-012
Cu3(OH)2(As2O7)
Theophrastite Ni(OH)2
Theresemagnanite (Co,Zn,Ni)6(SO4)(OH,Cl)10·8(H2O)
Thermonatrite Na2CO3·(H2O)
Thomasclarkite-(Y) IMA1997-047
(Na,Ce)(Y,REE)(HCO3)(OH)3·4H2O
Thometzekite Pb(Cu,Zn)2(AsO4)2·2(H2O)
Thomsenolite NaCaAlF6·(H2O)
Thomsonite Bagotite
NaCa2Al5Si5O20·6(H2O)
Thorbastnasite Thorbastnaesite
Th(Ca,Ce)(CO3)2F2·3(H2O)
Thoreaulite Sn++Ta2O6
Thorianite ThO2
Thorikosite Pb3(Sb+++,As+++)O3(OH)Cl2
Thorite Orangite
ThSiO4
Thornasite Na12Th3[Si8O19]4·18(H2O)
Thorogummite Mackintoshite
Th(SiO4)1-x(OH)4x
Thorosteenstrupine (Ca,Th,Mn)3Si4O11F·6(H2O)
Thortveitite (Sc,Y)2Si2O7
Thorutite (Th,U,Ca)Ti2(O,OH)6
Threadgoldite Al(UO2)2(PO4)2(OH)·8(H2O)
Tiemannite HgSe
Tienshanite BaNa2MnTiB2Si6O20
Tiettaite (Na,K)17Fe+++TiSi16O29(OH)30·2(H2O)
Tikhonenkovite SrAl(OH)F4·(H2O)
Tilasite CaMg(AsO4)F
Tilleyite Ca5Si2O7(CO3)2
Tin Zinn
Etain
Sn
Tinaksite K2Na(Ca,Mn++)2(Ti,Fe)O[Si7O18(OH)]
Tincalconite Na6[B4O5(OH)4]3·8(H2O)
Tinnunculite C10H12N6O8 (?)
Tinsleyite KAl2(PO4)2(OH)·2(H2O)
Tinticite Fe+++5(PO4,VO4)4·7(H2O)
Tintinaite Pb22Cu+4(Sb,Bi)30S69
Tinzenite Severginite
(Ca,Mn,Fe)3Al2BO3Si4O12(OH)
Tiptopite K2(Na,Ca)2Li3Be6(PO4)6(OH)2·(H2O)
Tiragalloite Mn++4As+++++Si3O12(OH)
Tirodite Mn++2(Mg,Fe++)5Si8O22(OH)2
Tisinalite Na3H3(Mn++,Ca,Fe)TiSi6(O,OH)18·2(H2O)
Titanite Sphene
CaTiSiO5 = CaTiOSiO4
Titanium Ti
Titanowodginite (Mn++,Fe++)(Ti,Sn)(Ta,Nb)2O8
Titantaramellite Ba4(Ti,Fe+++,Fe++,Mg)4(B2Si8O27)O2Clx X=0 TO 1, with Ti > Fe
Tivanite V+++TiO3(OH)
Tlalocite Cu10Zn6(Te++++O3)(Te++++++O4)2Cl(OH)25·27(H2O)
Tlapallite H6(Ca,Pb)2Cu3(SO4)(Te++++O3)4(Te++++++O6)
Tobelite (NH4,K)Al2(Si3Al)O10(OH)2
Tobermorite Ca5Si6O16(OH)2·4(H2O)
Tochilinite 6Fe0.9S·5(Mg,Fe++)(OH)2
Tocornalite (Ag,Hg)I (?)
Todorokite (Na,Ca,K)2(Mn++++,Mn+++)6O12·3-4.5(H2O)
Tokkoite K2Ca4[Si7O18(OH)](F,OH)
Tolbachite CuCl2
Tolovkite IrSbS
Tombarthite-(Y) Y4(Si,H4)4O12-x(OH)4+2x
Tomichite (V,Fe)4Ti3AsO13(OH)
Tongbaite Cr3C2
Tongxinite Cu2Zn
Tooeleite Fe+++(8-2x)[(As(1-x),S(x))O4]6·5(H2O)
Topaz Al2SiO4(F,OH)2
Torbernite Copper Uranite
Cu(UO2)2(PO4)2·8-12(H2O)
Tornebohmite-(Ce) (Ce,La,Nd)2Al(SiO4)2(OH)
Tornebohmite-(La) (La,Ce)2Al(SiO4)2(OH)
Torreyite (Mg,Mn)9Zn4(SO4)2(OH)22·8(H2O)
Tosudite Chlorite
Alushtite
Smectite
Na0,5(Al,Mg)6(Si,Al)8O18(OH)12·5(H2O)
Tounkite (Na,Ca,K)8Al6Si6O24(SO4)2Cl·(H2O)
Toyohaite Ag2FeSn3S8
Trabzonite Ca4Si3O10·2(H2O)
Tranquillityite Fe++8(Zr,Y)2Ti3Si3O24
Traskite (Ba,Ca)9(Fe++,Mn)2Ti2(SiO3)12(OH,Cl,F)6·6(H2O)
Treasurite Ag7Pb6Bi15S32
Trechmannite AgAsS2
Trembathite (Mg,Fe++)3B7O13Cl
Tremolite [ ]Ca2Mg5Si8O22(OH)2
Trevorite NiFe+++2O4
Triangulite Al3(UO2)4(PO4)4(OH)5·5(H2O)
Tridymite SiO2
Trigonite Pb3Mn(As+++O3)2(As+++O2OH)
Trikalsilite (K,Na)AlSiO4
Trilithionite KLi1.5Al1.5AlSi3O10F2
Trimerite CaMn2Be3(SiO4)3
Trimounsite-(Y) (Y,REE)2Ti2SiO9
Triphylite LiFe++PO4
Triplite (Mn,Fe++,Mg,Ca)2(PO4)(F,OH)
Triploidite (Mn,Fe++)2(PO4)(OH)
Trippkeite CuAs+++2O4
Tripuhyite Fe++Sb+++++2O6
Tristramite (Ca,U++++,Fe+++)(PO4,SO4)·2(H2O)
Tritomite-(Ce) Tritomite
(Ce,La,Ca,Y,Th)5(Si,B)3(O,OH,F)13
Tritomite-(Y) Spenceite
(Y,Ca,La,Fe++)5(Si,B,Al)3(O,OH,F)13 (?)
Trogerite Troegerite
(UO2)3(AsO4)2·12(H2O) (?)
Trogtalite CoSe2
Troilite FeS
Trolleite Al4(PO4)3(OH)3
Trona Urao
Na3(CO3)(HCO3)·2(H2O)
Truscottite (Ca,Mn++)14Si24O58(OH)8·2(H2O)
Trustedtite Truestedtite
Ni3Se4
Tsaregorodtsevite N(CH3)4AlSi5O12
Tschermakite [ ]Ca2(Mg3AlFe+++)Si6Al2O22(OH)2
Tschermigite Ammonia alum
(NH4)Al(SO4)2·12(H2O)
Tschernichite (Ca,Na)(Si6Al2)O16·4-8(H2O)
Tschortnerite IMA1995-051
Ca4(Ca,Sr,K,Ba)3Cu3(OH)8[Si12Al12O48]·x(H2O), x>=20
Tsnigriite Ag9SbTe3(S,Se)3
Tsugaruite IMA1997-010
Pb4As2S7
Tsumcorite PbZnFe++(AsO4)2·(H2O)
Tsumebite Pb2Cu(PO4)(SO4)(OH)
Tsumoite BiTe
Tucekite Ni9Sb2S8
Tugarinovite MoO2
Tugtupite Na4AlBeSi4O12Cl
Tuhualite [ ](Na,K)Fe++Fe+++[Si6O15]
Tulameenite Pt2FeCu
Tuliokite BaNa6Th(CO3)6·6(H2O)
Tumchaite IMA1999-041
Na2(Zr,Sn)Si4O11·2H2O
Tundrite-(Ce) Na3(Ce,La)4(Ti,Nb)2(SiO4)2(CO3)3O4(OH)·2(H2O)
Tundrite-(Nd) Na3(Nd,La)4(Ti,Nb)2(SiO4)2(CO3)3O4(OH)·2(H2O)
Tunellite SrB6O9(OH)2·3(H2O)
Tungstenite WS2
Tungstibite IMA1993-059
Sb2O3·WO3
Tungstite WO3·(H2O)
Tungusite Ca14(OH)8(Si8O20)3Fe++9(OH)14
Tunisite NaCa2Al4(CO3)4(OH)8Cl
Tuperssuatsiaite NaFe+++3Si8O20·4(H2O)
Turanite Cu5(VO4)2(OH)4
Turkestanite IMA1996-036
Th(Ca,Na)2(K1-x,[ ]x)Si8O20·n(H2O)
Turneaureite Ca5[(As,P)O4]3Cl
Turquoise Callaite
CuAl6(PO4)4(OH)8·4(H2O)
Turtmannite (Mn,Mg)25.5[(V,As)O4]3(SiO4)3[AsO3]xO5-5x(OH)20+x
Tuscanite K(Ca,Na)6(Si,Al)10O22(SO4,CO3,(OH)2)·(H2O)
Tusionite MnSn++++(BO3)2
Tuzlaite NaCaB508(0H)2·3(H2O)
Tvalchrelidzeite Hg12(Sb,As)8S15
Tvedalite (Ca,Mn++)4Be3Si6O17(OH)4·3(H2O)
Tveitite-(Y) Ca1-xYxF2+x, x~0.3
Twinnite Pb(Sb,As)2S4
Tychite Na6Mg2(CO3)4(SO4)
Tyretskite Ca2B5O9(OH)·(H2O)
Tyrolite Tirolit
CaCu5(AsO4)2(CO3)(OH)4·6(H2O)
Tyrrellite (Cu,Co,Ni)3Se4
Tyuyamunite Calciocarnotite
Ca(UO2)2V2O8·5-8(H2O)