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Minerals containing silicon
1,605 minerals
Silicon — element
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Steiningerite | Ba₂Zr₂(Si₄O₁₂)O₂ | Tetragonal | — | — |
| Stellerite | Ca₄(Si₂₈Al₈)O₇₂·28H₂O | Orthorhombic | — | — |
| Stetindite-(Ce) | Ce(SiO₄) | Tetragonal | — | — |
| Stevensite | (Ca,Na)xMg₃-x(Si₄O₁₀)(OH)₂ | — | — | — |
| Stilbite-Ca | NaCa₄(Si₂₇Al₉)O₇₂·28H₂O | Monoclinic | — | — |
| Stilbite-Na | Na₉(Si₂₇Al₉)O₇₂·28H₂O | Monoclinic | — | — |
| Stillwellite-(Ce) | CeBSiO₅ | Trigonal | — | 4.74 g/cm³ |
| Stillwellite-(La) | LaBSiO₅ | Trigonal | — | — |
| Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆·nH₂O | — | — | — |
| Stishovite | SiO₂ | Tetragonal | 9.4 | 2.63 g/cm³ |
| Stokesite | CaSn[Si₃O₉] * 2H₂O | Orthorhombic | 6.0 | — |
| Stoppaniite | Be₃Fe³⁺₂(Si₆O₁₈) * H₂O | Hexagonal | — | — |
| Stracherite | BaCa₆(SiO₄)₂[(PO₄)(CO₃)]₂F | Trigonal | — | — |
| Strakhovite | NaBa₃Mn²⁺₂Mn³⁺₂Si₆O₁₉(OH)₃ | — | — | — |
| Stringhamite | CaCu(SiO₄) * H₂O | — | — | — |
| Stronalsite | Na₂SrAl₄Si₄O₁₆ | Orthorhombic | 6.5 | 2.92 g/cm³ |
| Strontio-orthojoaquinite | (Na,Fe)₂Sr₂Ba₂Ti₂[Si₄O₁₂]₂O₂(O,OH)₂ * H₂O | Orthorhombic | — | — |
| Strontiochevkinite | (Sr,La,Ce,Ca)₄Fe²⁺(Ti,Zr)₂Ti₂(Si₂O₇)₂O₈ | Monoclinic | — | — |
| Strontiojoaquinite | Sr₂Ba₂(Na,Fe)₂Ti₂[Si₄O₁₂]₂O₂(O,OH)₂ * H₂O | Monoclinic | — | — |
| Strontioruizite | Sr₂Mn³⁺₂Si₄O₁₁(OH)₄·2H₂O | Monoclinic | — | — |
| Stöfflerite | CaAl₂Si₂O₈ | Tetragonal | — | — |
| Sudoite | Mg₂Al₃(Si₃Al)O₁₀(OH)₈ | — | — | — |
| Suessite | (Fe,Ni)₃Si | Cubic | — | — |
| Sugilite | K(Na,☐)₂Li₃(Fe,Mn,Al,Zr)₂[Si₁₂O₃₀] | Hexagonal | — | — |
| Suhailite | (NH₄)Fe²⁺₃(Si₃Al)O₁₀(OH)₂ | Monoclinic | 2.5 | — |
| Sulfhydrylbystrite | Na₅K₂Ca[Al₆Si₆O₂₄](S₅)²⁻(SH)⁻ | Trigonal | — | — |
| Suolunite | Ca₂Si₂O₅(OH)₂(H₂O) | Orthorhombic | — | — |
| Surinamite | Mg₃Al₃O[Si₃BeAlO₁₅] | — | — | — |
| Surite | (Pb,Ca)₃(Al,Fe²⁺,Mg)₂((Si,Al)₄O₁₀)(CO₃)₂(OH)₂ | — | — | — |
| Surkhobite | KBa₃Ca₂Na₂Mn₁₆Ti₈(Si₂O₇)₈O₈(OH)₄(F,O,OH)₈ | Monoclinic | — | — |
| Sursassite | Mn²⁺₂Al₃(SiO₄)(Si₂O₇)(OH)₃ | Monoclinic | — | — |
| Suzukiite | BaVSi₂O₇ | — | — | — |
| Sveinbergeite | Ca(Fe²⁺₆Fe³⁺)Ti₂(Si₄O₁₂)₂O₂(OH)₅(H₂O)₄ | Triclinic | — | — |
| Sverigeite | NaMnMgSnBe₂(SiO₄)₃(OH) | Orthorhombic | — | — |
| Svyatoslavite | Ca(Al₂Si₂O₈) | Orthorhombic | — | — |
| Swamboite-(Nd) | Nd₀.₃₃₃[(UO₂)(SiO₃OH)](H₂O)\\sim₂.₅ | Monoclinic | 2.5 | — |
| Swinefordite | Li(Al,Li,Mg)₄((Si,Al)₄O₁₀)₂(OH,F)₄ * nH₂O | — | — | — |
| Tacharanite | Ca₁₂Al₂Si₁₈O₃₃(OH)₃₆ | Monoclinic | — | — |
| Tadzhikite-(Ce) | Ca₄Ce³⁺₂Ti☐(B₄Si₄O₂₂)(OH)₂ | — | — | — |
| Taikanite | Sr₃BaMn²⁺₂(Si₄O₁₂)O₂ | — | — | — |
| Tainiolite | KLiMg₂Si₄O₁₀F₂ | Monoclinic | — | — |
| Taipingite-(CeCa) | (Ce₇Ca₂)Mg(SiO₄)₃[SiO₃(OH)]₄F₃ | Trigonal | — | — |
| Tamaite | (Ca,K,Ba,Na)₃-₄Mn₂₄(Si,Al)₄₀(O,OH)₁₁₂·nH₂O | Monoclinic | — | — |
| Taneyamalite | (Na,Ca)(Mn,Mg,Fe)₁₂Si₁₂(O,OH)₄₄ | — | — | — |
| Taniajacoite | SrCaMn³⁺₂Si₄O₁₁(OH)₄·2H₂O | Triclinic | — | — |
| Tanohataite | LiMn₂Si₃O₈(OH) | Triclinic | — | — |
| Taramellite | Ba₄(Fe³⁺,Ti,Fe²⁺,Mg)₄(B₂Si₈O₂₇)O₂Clx | — | — | — |
| Taramite | NaCaNa(Mg₃Al₂)Al₂Si₆O₂₂(OH)₂ | Monoclinic | — | — |
| Tarbagataite | (K☐)Ca(Fe,Mn)₇Ti₂(Si₄O₁₂)₂O₂(OH)₅ | Triclinic | — | — |
| Taseqite | Na₁₂Sr₃Ca₆Fe₃Zr₃Nb[(Si₃O₉)₂(Si₉O₂₇)₂SiO]Cl₂(O,OH,H₂O)₃ | Trigonal | — | — |
| Tazzoliite | Ba₂CaSr₀.₅Na₀.₅Ti₂Nb₃SiO₁₇[PO₂(OH)₂]₀.₅ | Orthorhombic | — | — |
| Telyushenkoite | (Cs,Na,K)Na₆[Be₂Al₃Si₁₅O₃₉]F₂ | Trigonal | — | — |
| Tephroite | Mn²⁺₂SiO₄ | Orthorhombic | 6.0 | — |
| Ternesite | Ca₅(SiO₄)₂(SO₄) | Orthorhombic | — | — |
| Terranovaite | (Na,Ca)₈(Si₆₈Al₁₂)O₁₆₀·~8H₂O | Orthorhombic | — | — |
| Terskite | Na₄ZrSi₆O₁₆·2H₂O | — | — | — |
| Tetraferriannite | KFe²⁺₃((Fe³⁺,Al)Si₃O₁₀)(OH)₂ | — | — | — |
| Tetraferriphlogopite | KMg₃(Fe³⁺Si₃O₁₀)(OH,F)₂ | — | — | — |
| Thalénite-(Y) | Y₃Si₃O₁₀F | Monoclinic | — | — |
| Thaumasite | Ca₃Si(OH)₆(SO₄)(CO₃)·12H₂O | Hexagonal | 3.5 | — |
| Thionasilite | Na₂Si₂S₂O₃ | Orthorhombic | — | — |
| Thomsonite-Ca | NaCa₂(Al₅Si₅)O₂₀·6H₂O | Orthorhombic | — | — |
| Thomsonite-Sr | NaSr₂Al₅Si₅O₂₀·(6-7)H₂O | Orthorhombic | — | — |
| Thorite | ThSiO₄ | Tetragonal | — | 6.66 g/cm³ |
| Thornasite | Na₁₂Th₃(Si₈O₁₉)₄·(H₂O)₁₂·6H₂O | — | — | — |
| Thorosteenstrupine | (Ca,Th,Mn)₃Si₄O₁₁F·6H₂O | Amorphous | — | — |
| Thortveitite | Sc₂Si₂O₇ | Monoclinic | — | 3.37 g/cm³ |
| Tiberiobardiite | {Cu₉Al[SiO₃(OH)]₂(OH)₁₂(H₂O)₆}(SO₄)₁.₅·10H₂O | Trigonal | — | — |
| Tienshanite | KNa₃Na₆Ca₂Ba₆Mn₆(Ti₄+,Nb)₆B₁₂Si₃₆O₁₁₄(O,OH,F)₁₁ | Hexagonal | — | — |
| Tiettaite | (Na,K)₁₇FeTiSi₁₆O₂₉(OH)₃₀·2H₂O | Orthorhombic | — | — |
| Tilleyite | Ca₅Si₂O₇(CO₃)₂ | Monoclinic | — | — |
| Tinaksite | K₂Na(Ca,Mn²⁺)₂Ti[O|Si₇O₁₈(OH)] | — | — | — |
| Tinzenite | Ca₆Al₄[B₂Si₈O₃₀](OH)₂ | Triclinic | — | — |
| Tiragalloite | Mn²⁺₄As₅+Si₃O₁₂(OH) | Monoclinic | — | — |
| Tisinalite | Na₃H₃(Mn,Ca,Fe)TiSi₆(O,OH)₁₈ * 2H₂O | Trigonal | — | — |
| Tissintite | (Ca,Na,☐)AlSi₂O₆ | Monoclinic | — | — |
| Titanite | CaTiSiO₅ | Monoclinic | 5.5 | 3.42 g/cm³ |
| Titanoholtite | (Ti₀.₇₅☐₀.₂₅)Al₆BSi₃O₁₈ | Orthorhombic | — | — |
| Titantaramellite | Ba₄(Ti,Fe³⁺,Fe²⁺,Mg)₄(B₂Si₈O₂₇)O₂Clx | — | — | — |
| Tobelite | (NH₄,K)Al₂(AlSi₃O₁₀)(OH)₂ | — | — | — |