- Home
- Minerals
Minerals
6,131 minerals
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Tritomite-(Ce) | Ce₅(SiO₄,BO₄)₃(OH,O) | — | — | — |
| Tritomite-(Y) | Y₅(SiO₄,BO₄)₃(O,OH,F) | — | — | — |
| Trogtalite | CoSe₂ | Cubic | 7.0 | 6.90 g/cm³ |
| Troilite | FeS | Hexagonal | — | 4.29 g/cm³ |
| Trolleite | Al₄(PO₄)₃(OH)₃ | Monoclinic | — | — |
| Trona | Na₃(HCO₃)(CO₃)·2H₂O | Monoclinic | — | — |
| Truscottite | (Ca,Mn)₁₄Si₂₄O₅₈(OH)₈·2H₂O | — | — | — |
| Trébeurdenite | Fe²⁺₂Fe³⁺₄O₂(OH)₁₀(CO₃)·3H₂O | Trigonal | — | — |
| Trögerite | (H₃O)(UO₂)(AsO₄)·3H₂O | Tetragonal | — | — |
| Trüstedtite | Ni₃Se₄ | Cubic | — | — |
| Tsangpoite | Ca₅(PO₄)₂(SiO₄) | Hexagonal | — | — |
| Tsaregorodtsevite | (N(CH₃)₄)(AlSi₅O₁₂) | Orthorhombic | — | — |
| Tschaunerite | (Fe²⁺)(Fe²⁺Ti₄+)O₄ | Orthorhombic | — | — |
| Tschermakite | ☐Ca₂(Mg₃Al₂)Si₆Al₂O₂₂(OH)₂ | Monoclinic | 5.5 | — |
| Tschermigite | NH₄Al(SO₄)₂·12H₂O | Cubic | 1.5 | — |
| Tschernichite | CaAl₂Si₆O₁₆·8H₂O | Tetragonal | — | — |
| Tschörtnerite | Ca₄(K,Ca,Sr,Ba)₃Cu₃Al₁₂Si₁₂O₄₈(OH)₈·20H₂O | Cubic | — | — |
| 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 | Monoclinic | — | — |
| Tsikourasite | Mo₃Ni₂P₁₊ₓ | Cubic | — | — |
| Tsilaisite | NaMn²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH) | Trigonal | 7.0 | — |
| Tsnigriite | Ag₉SbTe₃S₃ | — | — | — |
| Tsugaruite | Pb₄As₂S₇ | — | — | — |
| Tsumcorite | PbZn₂(AsO₄)₂·2H₂O | Monoclinic | 4.5 | — |
| Tsumebite | Pb₂Cu(PO₄)(SO₄)(OH) | — | 3.5 | — |
| Tsumgallite | GaO(OH) | Orthorhombic | — | 5.20 g/cm³ |
| Tsumoite | BiTe | Trigonal | — | — |
| Tsygankoite | Mn₈Tl₈Hg₂(Sb₂₁Pb₂Tl)S₄₈ | — | — | — |
| Tubulite | Ag₂Pb₂₂Sb₂₀S₅₃ | Monoclinic | — | — |
| Tugarinovite | MoO₂ | — | — | — |
| Tugtupite | Na₄BeAlSi₄O₁₂Cl | Tetragonal | 4.0 | 2.46 g/cm³ |
| Tuhualite | NaFe²⁺Fe³⁺Si₆O₁₅ | — | — | — |
| Tuite | Ca₃(PO₄)₂ | Trigonal | — | 2.78 g/cm³ |
| Tulameenite | CuFePt₂ | Tetragonal | — | — |
| Tuliokite | Na₆BaTh(CO₃)₆·6H₂O | Trigonal | — | — |
| Tululite | Ca₁₄(Fe³⁺,Al)(Al,Zn,Fe³⁺,Si,P,Mn,Mg)₁₅O₃₆ | Cubic | — | — |
| Tumchaite | Na₂Zr(Si₄O₁₁)·2H₂O | Monoclinic | — | — |
| Tundrite-(Ce) | Na₂Ce₂TiO₂(SiO₄)(CO₃)₂ | Triclinic | 3.0 | — |
| Tundrite-(Nd) | Na₂Nd₂TiO₂(SiO₄)(CO₃)₂ | — | — | — |
| Tunellite | SrB₆O₉(OH)₂·3H₂O | Monoclinic | — | — |
| Tungsten (native) | W | Cubic | — | 19.27 g/cm³ |
| Tungstenite | WS₂ | Hexagonal | — | 7.23 g/cm³ |
| Tungstibite | Sb₂WO₆ | Orthorhombic | — | — |
| Tungstite | WO₃·H₂O | — | — | — |
| Tungusite | Ca₄Fe₂Si₆O₁₅(OH)₆ | — | — | — |
| Tunisite | NaCa₂Al₄(CO₃)₄(OH)₈Cl | Tetragonal | — | — |
| Tuperssuatsiaite | Na₂Fe₃Si₈O₂₀(OH)₂·4H₂O | Monoclinic | — | — |
| Turanite | Cu₅(VO₄)₂(OH)₄ | Triclinic | — | — |
| Turkestanite | (K,☐)(Ca,Na)₂ThSi₈O₂₀·nH₂O | Tetragonal | — | — |
| Turneaureite | Ca₅(AsO₄)₃Cl | Hexagonal | — | — |
| Turquoise | CuAl₆(PO₄)₄(OH)₈·4H₂O | Triclinic | — | — |
| Turtmannite | (Mn,Mg)₂₂.₅Mg₃-₃x((V₅+,As₅+)O₄)₃(As³⁺O₃)x(SiO₄)₃O₅-₅x(OH)₂₀+x | — | — | — |
| Tuscanite | (K(Ca,Na)₆(Si,Al)₁₀O₂₂[SO₄,CO₃,(OH)₂])·H₂O | — | — | — |
| Tusionite | Mn²⁺Sn₄+[BO₃]₂ | Trigonal | — | — |
| Tuzlaite | NaCaB₅O₈(OH)₂·3H₂O | Monoclinic | — | — |
| Tvalchrelidzeite | Hg₃SbAsS₃ | Monoclinic | — | — |
| Tvedalite | (Ca,Mn)₄Be₃Si₆O₁₇(OH)₄·3H₂O | — | — | — |
| Tveitite-(Y) | (Y,Na)₆Ca₆Ca₆F₄₂ | Trigonal | — | — |
| Tvrdýite | Fe²⁺Fe³⁺₂Al₃(PO₄)₄(OH)₅(H₂O)₄·2H₂O | Monoclinic | — | — |
| Tweddillite | CaSr(Mn³⁺₂Al)[Si₂O₇][SiO₄]O(OH) | Monoclinic | — | — |
| Twinnite | Pb₀.₈Tl₀.₁Sb₁.₃As₀.₈S₄ | — | 3.5 | — |
| Tychite | Na₆Mg₂(CO₃)₄(SO₄) | Cubic | — | 2.63 g/cm³ |
| Tyretskite | Ca₂B₅O₉OH·H₂O | — | — | — |
| Tyrolite | Ca₂Cu₉(AsO₄)₄(CO₃)(OH)₈·11H₂O | Monoclinic | 2.0 | — |
| Tyrrellite | Cu(Co,Ni)₂Se₄ | Cubic | — | — |
| Tyuyamunite | Ca(UO₂)₂(VO₄)₂·5-8H₂O | Orthorhombic | — | — |
| Tzeferisite | CaZn₈(SO₄)₂(OH)₁₂Cl₂(H₂O)₉ | Trigonal | — | — |
| Törnebohmite-(Ce) | Ce₂Al(SiO₄)₂(OH) | Monoclinic | — | — |
| Törnebohmite-(La) | La₂Al(SiO₄)₂(OH) | — | — | — |
| Törnroosite | Pd₁₁As₂Te₂ | Cubic | — | — |
| Uakitite | VN | Cubic | — | — |
| Uchucchacuaite | AgMnPb₃Sb₅S₁₂ | Orthorhombic | — | — |
| Udinaite | NaMg₄(VO₄)₃ | Tetragonal | — | 3.26 g/cm³ |
| Uduminelite | Ca₃Al₈(PO₄)₂O₁₂·2H₂O | — | — | — |
| Uedaite-(Ce) | Mn²⁺CeAl₂Fe²⁺(Si₂O₇)(SiO₄)O(OH) | Monoclinic | — | — |
| Uklonskovite | NaMg(SO₄)F·2H₂O | Monoclinic | — | — |
| Ulexite | NaCaB₅O₆(OH)₆·5H₂O | Triclinic | 2.5 | — |
| Ulfanderssonite-(Ce) | (Ce₁₅Ca)∑₁₆Mg₂(SiO₄)₁₀(SiO₃OH)(OH,F)₅Cl₃ | Monoclinic | — | — |