| Tacharanite (G) | Thaumasite (G) | Trechmannite (G) |
| Tachyhydrite (G) | Theisite (A) | Trembathite (A) |
| Tadzhikite-(Y) (A) | Thenardite (G) | Tremolite (R) |
| Taenite (G) | Theoparacelsite (A) | Trevorite (G) |
| Tagilite (Q) | Theophrastite (A) | Triangulite (A) |
| Taikanite (A) | Thérèsmagnanite (A) | Tridymite-10A (G) |
| Taimyrite I (A) | Thermonatrite (G) | Tridymite-1O (G) |
| Taimyrite II (N) | Thomasclarkite-(Y) (A) | Tridymite-2O (P) |
| Tainiolite (A) | Thometzekite (A) | Tridymite-3M (G) |
| Takanelite (A) | Thomsenolite (G) | Trigonite (G) |
| Takedaite (A) | Thomsonite (A) | Trikalsilite (G) |
| Takéuchiite (A) | Thomsonite-Sr (A) | Trilithionite (R) |
| Takovite (R) | Thorbastnäsite (G) | Trimerite (G) |
| Talc-1A (G) | Thoreaulite (G) | Trimounsite-(Y) (A) |
| Talc-2M1 (G) | Thorianite (G) | Triphylite (G) |
| Talmessite (A) | Thorikosite (A) | Triplite (G) |
| Talnakhite (A) | Thorite (G) | Triploidite (G) |
| Tamaite (A) | Thornasite (A) | Trippkeite (G) |
| Tamarugite (G) | Thorogummite (G) | Tripuhyite (G) |
| Tancoite (A) | Thorosteenstrupine (Q) | Tristramite (A) |
| Taneyamalite (A) | Thortveitite (G) | Tritomite-(Ce) (A) |
| Tangeite (R) | Thorutite (G) | Tritomite-(Y) (R) |
| Tantalaeschynite-(Y) (A) | Threadgoldite (A) | Trögerite (G) |
| Tantalcarbide (G) | Tibiscumite (N) | Trogtalite (G) |
| Tantalum (G) | Tiemannite (G) | Troilite (G) |
| Tanteuxenite-(Y) (A) | Tienshanite (A) | Trolleite (G) |
| Tantite (A) | Tietaiyangite (N) | Trona (G) |
| Tapiolite | Tiettaite (A) | Truscottite (G) |
| Taramellite (G) | Tikhonenkovite (G) | Trüstedtite (G) |
| Taramite (R) | Tilasite (G) | Tsaregorodtsevite (A) |
| Taranakite (G) | Tilleyite (G) | Tschermakite (R) |
| Tarapacáite (G) | Tillmannsite (A) | Tschermigite (G) |
| Tarbuttite (G) | Tin (G) | Tschernichite (A) |
| Tatarskite (N) | Tinaksite (G) | Tschörtnerite (A) |
| Tatyanaite (A) | Tincalconite (G) | Tsepinite-Na (R) |
| Tausonite (A) | Tinnunculite (N) | Tsepinite-Ca (A) |
| Tavorite (G) | Tinsleyite (A) | Tsepinite-K (A) |
| Tazheranite (A) | Tinticite (G) | Tsilaisite (Q) |
| Teallite (G) | Tintinaite (A) | Tsnigriite (A) |
| Tedhadleyite (A) | Tinzenite (G) | Tsugaruite (A) |
| Teepleite (G) | Tiptopite (A) | Tsumcorite (A) |
| Tegengrenite (A) | Tiragalloite (A) | Tsumebite (A) |
| Teineite (G) | Tischendorfite (A) | Tsumgallite (A) |
| Telargpalite (A) | Tisinalite (A) | Tsumoite (A) |
| Tellurantimony (A) | Titanclinohumite (Q) | Tucekite (A) |
| Tellurite (G) | Titanite (G) | Tugarinovite (A) |
| Tellurium (G) | Titanium (Q) | Tugtupite (G) |
| Tellurobismuthite (G) | Titanomaghemite (Q) | Tuhualite (G) |
| Tellurohauchecornite (A) | Titanowodginite (A) | Tulameenite (A) |
| Telluronevskite (A) | Titantaramellite (A) | Tuliokite (A) |
| Telluropalladinite (A) | Tivanite (A) | Tumchaite (A) |
| Telyushenkoite (A) | Tlalocite (A) | Tundrite-(Ce) (A) |
| Temagamite (A) | Tlapallite (A) | Tundrite-(Nd) (A) |
| Tengchongite (A) | Tobelite (A) | Tunellite (G) |
| Tengerite-(Y) (R) | Tobermorite (G) | Tungsten (N) |
| Tennantite (G) | Tobermorite-117 (P) | Tungstenite-2H (G) |
| Tenorite (G) | Tochilinite (A) | Tungstenite-3R (P) |
| Tephroite (G) | Tocornalite (Q) | Tungstibite (A) |
| Terlinguaite (G) | Todorokite (G) | Tungstite (G) |
| Ternesite (A) | Tokkoite (A) | Tungusite (A) |
| Ternovite (A) | Tokyoite (A) | Tunisite (A) |
| Terranovaite (A) | Tolbachite (A) | Tuperssuatsiaite (A) |
| Terskite (A) | Tolovkite (A) | Turanite (Q) |
| Tertschite (Q) | Tombarthite-(Y) (A) | Turkestanite (A) |
| Teruggite (A) | Tomichite (A) | Turneaureite (A) |
| Teschemacherite (G) | Tongbaite (A) | Turquoise (G) |
| Testibiopalladite (N) | Tongxinite (N) | Turtmannite (A) |
| Tetra-auricupride (N) | Tooeleite (A) | Tuscanite (A) |
| Tetradymite (G) | Topaz (G) | Tusionite (A) |
| Tetra-ferri-annite (A) | Torbernite (G) | Tuzlaite (A) |
| Tetra-ferriphlogopite (R) | Törnebohmite-(Ce) (A) | Tvalchrelidzeite (A) |
| Tetraferroplatinum (A) | Törnebohmite-(La) (A) | Tvedalite (A) |
| Tetrahedrite (G) | Torreyite (G) | Tveitite-(Y) (A) |
| Tetrarooseveltite (A) | Tosudite (G) | Tweddillite (A) |
| Tetrataenite (A) | Tounkite (A) | Twinnite (A) |
| Tetrawickmanite (A) | Tourmaline group | Tychite (G) |
| Thadeuite (A) | Toyohaite (A) | Tyretskite-1A (R) |
| Thalcusite (A) | Trabzonite (A) | Tyrolite (G) |
| Thalénite-(Y) (A) | Tranquillityite (A) | Tyrrellite (G) |
| Thalfenisite (A) | Traskite (A) | Tyuyamunite (G) |
| Treasurite (A) |