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Minerals
6,131 minerals
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Tadzhikite-(Ce) | Ca₄Ce³⁺₂Ti☐(B₄Si₄O₂₂)(OH)₂ | — | — | — |
| Taenite | (Ni,Fe) | Cubic | — | — |
| Taikanite | Sr₃BaMn²⁺₂(Si₄O₁₂)O₂ | — | — | — |
| Taimyrite | (Pd,Pt)₉Cu₃Sn₄ | Orthorhombic | — | — |
| Tainiolite | KLiMg₂Si₄O₁₀F₂ | Monoclinic | — | — |
| Taipingite-(CeCa) | (Ce₇Ca₂)Mg(SiO₄)₃[SiO₃(OH)]₄F₃ | Trigonal | — | — |
| Takanawaite-(Y) | YTaO₄ | Monoclinic | — | 7.52 g/cm³ |
| Takanelite | (Mn²⁺,Ca)₂ₓ(Mn⁴⁺)₁₋ₓO₂·0.7H₂O | — | — | — |
| Takedaite | — | Trigonal | — | — |
| Takovite | Ni₆Al₂(OH)₁₆[CO₃]·4H₂O | Trigonal | — | — |
| Takéuchiite | Mg₂Mn³⁺O₂(BO₃) | Orthorhombic | — | — |
| Talc | — | Hexagonal | 1.0 | 2.75 g/cm³ |
| Talmessite | Ca₂Mg(AsO₄)₂·2H₂O | — | 5.0 | — |
| Talnakhite | Cu₉Fe₈S₁₆ | Cubic | — | 4.29 g/cm³ |
| Tamaite | (Ca,K,Ba,Na)₃-₄Mn₂₄(Si,Al)₄₀(O,OH)₁₁₂·nH₂O | Monoclinic | — | — |
| Tamarugite | NaAl(SO₄)₂·6H₂O | Monoclinic | — | — |
| Tamboite | Fe³⁺₃(OH)(H₂O)₂(SO₄)(Te₄+O₃)₃(Te₄+O(OH)₂)(H₂O)₃ | Monoclinic | — | — |
| Tancaite-(Ce) | FeCe(MoO₄)₃·3H₂O | Trigonal | — | — |
| Tancoite | LiNa₂Al(PO₄)(HPO₄)(OH) | Orthorhombic | — | — |
| Taneyamalite | (Na,Ca)(Mn,Mg,Fe)₁₂Si₁₂(O,OH)₄₄ | — | — | — |
| Tangdanite | Ca₂Cu₉(AsO₄)₄(SO₄)₀.₅(OH)₉·9H₂O | Monoclinic | — | — |
| Tangeite | CaCu(VO₄)(OH) | — | 3.5 | — |
| Taniajacoite | SrCaMn³⁺₂Si₄O₁₁(OH)₄·2H₂O | Triclinic | — | — |
| Tanohataite | LiMn₂Si₃O₈(OH) | Triclinic | — | — |
| Tantalaeschynite-(Ce) | Ce(TiTa)O₆ | Orthorhombic | — | — |
| Tantalaeschynite-(Y) | Ce(TiTa)O₆ | Orthorhombic | — | — |
| Tantalcarbide | TaC | Cubic | — | 14.37 g/cm³ |
| Tantalite-(Fe) | Fe²⁺Ta₂O₆ | Orthorhombic | — | — |
| Tantalite-(Mg) | MgTa₂O₆ | Orthorhombic | — | 7.79 g/cm³ |
| Tantalite-(Mn) | Mn²⁺Ta₂O₆ | Orthorhombic | — | — |
| Tantalowodginite | (Mn☐)TaTa₂O₈ | — | — | — |
| Tanteuxenite-(Y) | Y(Ta,Nb,Ti)₂(O,OH)₆ | — | — | — |
| Tantite | Ta₂O₅ | Triclinic | — | — |
| Tapiaite | Ca₅Al₂(AsO₄)₄(OH)₄·12H₂O | Monoclinic | — | — |
| Tapiolite-(Fe) | (Fe,Mn)(Ta,Nb)₂O₆ | Tetragonal | — | — |
| Tapiolite-(Mn) | Mn²⁺Ta₂O₆ | Tetragonal | — | — |
| Taramellite | Ba₄(Fe³⁺,Ti,Fe²⁺,Mg)₄(B₂Si₈O₂₇)O₂Clx | — | — | — |
| Taramite | NaCaNa(Mg₃Al₂)Al₂Si₆O₂₂(OH)₂ | Monoclinic | — | — |
| Taranakite | K₃Al₅(PO₃OH)₆(PO₄)₂·18H₂O | Trigonal | — | — |
| Tarapacáite | K₂CrO₄ | Orthorhombic | — | — |
| Tarbagataite | (K☐)Ca(Fe,Mn)₇Ti₂(Si₄O₁₂)₂O₂(OH)₅ | Triclinic | — | — |
| Tarbuttite | Zn₂(PO₄)(OH) | Triclinic | — | — |
| Tarkianite | (Cu,Fe)(Re,Mo)₄S₈ | Cubic | — | — |
| Tartarosite | C | Cubic | — | — |
| Tarutinoite | Ag₃Pb₇Bi₇S₁₉ | Monoclinic | — | — |
| Taseqite | Na₁₂Sr₃Ca₆Fe₃Zr₃Nb[(Si₃O₉)₂(Si₉O₂₇)₂SiO]Cl₂(O,OH,H₂O)₃ | Trigonal | — | — |
| Tashelgite | CaMgFe²⁺Al₉O₁₆(OH) | Monoclinic | — | — |
| Tassieite | NaCa₂Mg₃Fe²⁺₂F³⁺(PO₄)₆·2H₂O | — | — | — |
| Tatarinovite | Ca₃Al(SO₄)[B(OH)₄](OH)₆·12H₂O | Hexagonal | — | — |
| Tatarskite | Ca₆Mg₂(SO₄)₂(CO₃)₂(OH)₄Cl₄·7H₂O | Orthorhombic | — | — |
| Tatyanaite | (Pt,Pd,Cu)₉Cu₃Sn₄ | Orthorhombic | — | — |
| Tausonite | SrTiO₃ | Cubic | — | — |
| Tavagnascoite | Bi₄O₄(SO₄)(OH)₂ | Orthorhombic | — | — |
| Tavorite | LiFe³⁺(PO₄)(OH) | — | — | — |
| Tazheranite | (Zr,Ti,Ca)(O,☐)₂ | — | — | — |
| Tazieffite | Pb₂₀Cd₂(As,Bi)₂₂S₅₀Cl₁₀ | Monoclinic | — | — |
| Tazzoliite | Ba₂CaSr₀.₅Na₀.₅Ti₂Nb₃SiO₁₇[PO₂(OH)₂]₀.₅ | Orthorhombic | — | — |
| Teallite | PbSnS₂ | Orthorhombic | 1.5 | — |
| Tedhadleyite | Hg²⁺Hg⁺₁₀O₄I₂(Cl,Br)₂ | Triclinic | — | — |
| Teepleite | Na₂[B(OH)₄]Cl | Tetragonal | — | — |
| Tegengrenite | (Mn³⁺₀.₅Sb⁵⁺₀.₅)Mg₂O₄ | Trigonal | — | — |
| Teineite | Cu²⁺Te⁴⁺O₃·2H₂O | — | — | — |
| Telargpalite | (Pd,Ag)₃(Te,Bi) | Cubic | — | — |
| Tellurantimony | Sb₂Te₃ | Trigonal | — | 6.12 g/cm³ |
| Telluric iron | Fe | Cubic | — | — |
| Tellurite | TeO₂ | Tetragonal | 2.0 | — |
| Tellurium | Te | Trigonal | — | — |
| Tellurobismuthite | Bi₂Te₃ | Trigonal | — | 7.32 g/cm³ |
| Tellurohauchecornite | Ni₉BiTeS₈ | Tetragonal | — | — |
| Telluromandarinoite | Fe³⁺₂(Te⁴⁺O₃)₃·6H₂O | Monoclinic | — | — |
| Telluronevskite | Bi₃TeSe₂ | Trigonal | — | — |
| Telluropalladinite | Pd₉Te₄ | Monoclinic | — | 10.27 g/cm³ |
| Telluroperite | Pb₃Te⁴⁺O₄Cl₂ | Orthorhombic | — | — |
| Telyushenkoite | (Cs,Na,K)Na₆[Be₂Al₃Si₁₅O₃₉]F₂ | Trigonal | — | — |
| Temagamite | Pd₃HgTe₃ | Orthorhombic | — | — |
| Tengchongite | CaO(UO₂)₆(MoO₄)₂O₅·12H₂O | Orthorhombic | — | — |
| Tengerite-(Y) | Y₂(CO₃)₃·2-3H₂O | Orthorhombic | — | — |
| Tennantite-(Fe) | Cu₁₀Fe₂As₄S₁₃ | Cubic | — | — |
| Tennantite-(Hg) | — | Cubic | — | — |
| Tennantite-(In) | Cu₆(Cu₅In)As₄S₁₃ | Cubic | — | — |