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Minerals containing silicon
1,605 minerals
Silicon — element
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Abenakiite-(Ce) | Na₂₆Ce₆(Si₆O₁₈)(PO₄)₆(CO₃)₆(SO₂)O | Trigonal | — | — |
| Abswurmbachite | Cu²⁺(Mn³⁺)₆O₈(SiO₄) | Tetragonal | 6.5 | 4.96 g/cm³ |
| Actinolite | Ca₂(Mg,Fe)₅[OH|Si₄O₁₁]₂ | Monoclinic | — | — |
| Adachiite | CaFe²⁺₃Al₆(Si₅AlO₁₈)(BO₃)₃(OH)₃(OH) | Trigonal | 7.0 | — |
| Adrianite | Ca₁₂(Al₄Mg₃Si₇)O₃₂Cl₆ | Cubic | — | — |
| Aegirine | NaFe³⁺Si₂O₆ | Monoclinic | 6.3 | — |
| Aegirine-augite | (Ca,Na)(Fe³⁺,Mg,Fe²⁺)Si₂O₆ | Monoclinic | — | — |
| Aenigmatite | Na₄[Fe²⁺₁₀Ti₂]O₄[Si₁₂O₃₆] | Triclinic | 5.5 | — |
| Aerinite | (Ca,Na)₆(Fe³⁺,Fe²⁺,Mg,Al)₄(Al,Mg)₆Si₁₂O₃₆(OH)₁₂(CO₃)·12H₂O | — | 3.0 | 2.48 g/cm³ |
| Afghanite | (Na,K)₂₂Ca₁₀(Si₂₄Al₂₄)O₉₆(SO₄)₆Cl₆ | Trigonal | — | — |
| Afwillite | Ca₃[SiO₃(OH)]₂·2H₂O | Monoclinic | — | — |
| Agakhanovite-(Y) | YCa☐₂KBe₃Si₁₂O₃₀ | Hexagonal | 6.0 | — |
| Agrellite | NaCa₂Si₄O₁₀F | Triclinic | 5.5 | — |
| Ahrensite | γ-Fe₂(SiO₄) | Cubic | 6.0 | — |
| Ajoite | K₃Cu²⁺₂₀Al₃Si₂₉O₇₆(OH)₁₆·8H₂O | Triclinic | — | — |
| Akasakaite-(Ce) | (CaCe)(AlAlMn²⁺)O[Si₂O₇][SiO₄](OH) | Monoclinic | — | — |
| Akasakaite-(La) | (CaLa)(AlAlMn²⁺)O[Si₂O₇][SiO₄](OH) | Monoclinic | — | — |
| Akatoreite | Mn²⁺₉Al₂Si₈O₂₄(OH)₈ | Triclinic | 6.0 | — |
| Akimotoite | MgSiO₃ | Trigonal | — | — |
| Aklimaite | Ca₄[Si₂O₅(OH)₂](OH)₄·5H₂O | Monoclinic | — | — |
| Alamosite | PbSiO₃ | Monoclinic | 4.5 | 6.31 g/cm³ |
| Albite | NaAlSi₃O₈ | Triclinic | — | 2.64 g/cm³ |
| Aleksandrovite | KCa₇Sn₂Li₃Si₁₂O₃₆F₂ | Monoclinic | — | — |
| Alflarsenite | NaCa₂Be₃Si₄O₁₃(OH)·2H₂O | Monoclinic | — | — |
| Alfredcasparite | Sr₂TiO(Si₂O₇) | Tetragonal | — | — |
| Aliettite | Ca₀.₂Mg₆(Si,Al)₈O₂₀(OH)₄·4H₂O | Monoclinic | — | — |
| Allanite-(Ce) | CaCe(Al₂Fe²⁺)[Si₂O₇][SiO₄]O(OH) | Monoclinic | — | — |
| Allanite-(La) | CaLa(Al₂Fe²⁺)[Si₂O₇][SiO₄]O(OH) | Monoclinic | — | — |
| Allanite-(Nd) | CaNd(Al₂Fe²⁺)[Si₂O₇][SiO₄]O(OH) | Monoclinic | — | — |
| Allanite-(Sm) | (CaSm)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH) | Monoclinic | — | — |
| Allanite-(Y) | {CaY}{Al₂Fe²⁺}(Si₂O₇)(SiO₄)O(OH) | Monoclinic | — | — |
| Alleghanyite | Mn²⁺₅(SiO₄)₂(OH)₂ | Monoclinic | — | — |
| Allophane | Al₂O₃(SiO₂)₁.₃-₂.₀·2.5-3.0H₂O | — | 3.0 | — |
| Alloriite | (Na,K,Ca)₂₄(Na,Ca)₄Ca₄(Si,Al)₄₈O₉₆(SO₄)₄(SO₃,CO₃)₂(OH,Cl)₂(H₂O,OH)₄ | Trigonal | — | — |
| Alluaivite | Na₁₉(Ca,Mn²⁺)₆(Ti,Nb)₃Si₂₆O₇₄Cl·2H₂O | Trigonal | — | — |
| Almandine | Fe²⁺₃Al₂(SiO₄)₃ | Cubic | 7.5 | 4.30 g/cm³ |
| Almarudite | K(☐,Na)₂(Mn,Fe,Mg)₂[(Be,Al)₃Si₁₂]O₃₀ | Hexagonal | 6.0 | 2.72 g/cm³ |
| Alnaperbøeite-(Ce) | (CaCe₂.₅Na₀.₅)(Al₄)(Si₂O₇)(SiO₄)₃O(OH)₂ | Monoclinic | — | — |
| Alpeite | Ca₄Mn³⁺₂Al₂(Mn³⁺Mg)(SiO₄)₂(Si₃O₁₀)(V₅+O₄)(OH)₆ | Orthorhombic | — | — |
| Alsakharovite-Zn | NaSrKZn(Ti,Nb)₄(Si₄O₁₂)₂(O,OH)₄·7H₂O | Monoclinic | — | — |
| Altisite | Na₃K₆Ti₂Al₂Si₈O₂₆Cl₃ | Monoclinic | — | — |
| Aluminoceladonite | K(Mg,Fe²⁺)Al(Si₄O₁₀)(OH)₂ | Monoclinic | — | — |
| Aluminocerite-(CeCa) | (Ce₆Ca₃)☐Al(SiO₄)₃(SiO₃OH)₄(OH)₃ | Trigonal | — | — |
| Aluminotaipingite-(CeCa) | (Ce₆Ca₃)◻Al(SiO₄)₃[SiO₃(OH)]₄F₃ | Trigonal | — | — |
| Alumovesuvianite | Ca₁₉Al(Al₁₀Mg₂)Si₁₈O₆₉(OH)₉ | Tetragonal | — | — |
| Alumoåkermanite | (Ca,Na)₂(Al,Mg,Fe²⁺)(Si₂O₇) | Tetragonal | — | — |
| Alvesite | NaKZrSi₆O₁₅·2H₂O | Orthorhombic | — | — |
| Amableite-(Ce) | Na₁₅[(Ce₁.₅Na₁.₅)Mn₃]Mn₂Zr₃◻Si[Si₂₄O₆₉(OH)₃](OH)₂·H₂O | Trigonal | — | — |
| Amamoorite | CaMn²⁺₂Mn³⁺(Si₂O₇)O(OH) | — | — | — |
| Amaterasuite | Sr₄Ti₆Si₄O₂₃(OH)Cl | Orthorhombic | — | — |
| Amesite | Mg₂Al(AlSiO₅)(OH)₄ | Triclinic | — | — |
| Amicite | K₂Na₂(Al₄Si₄O₁₆)·5H₂O | Monoclinic | 4.5 | — |
| Aminoffite | Ca₃(BeOH)₂Si₃O₁₀ | Tetragonal | — | 2.83 g/cm³ |
| Ammonioleucite | (NH₄)AlSi₂O₆ | Tetragonal | — | — |
| Amstallite | CaAl[(Al,Si)₄O₈(OH)₂](OH)₂·(H₂O,Cl) | Monoclinic | 4.0 | — |
| Analcime | Na(AlSi₂O₆)·H₂O | Orthorhombic | — | — |
| Anandite | BaFe²⁺₃(Si₃Fe³⁺)O₁₀S(OH) | Monoclinic | — | — |
| Anatolygurbanovite | SrCa₂Si₃O₉ | Triclinic | — | — |
| Andalusite | Al₂SiO₅ | Orthorhombic | 7.5 | 3.15 g/cm³ |
| Andradite | Ca₃Fe³⁺₂(SiO₄)₃ | Cubic | — | — |
| Andrianovite | Na₁₂(K,Sr,Ce)₃Ca₆Mn₃Zr₃Nb(Si₂₅O₇₃)(O,H₂O,OH)₅ | Trigonal | — | — |
| Andrémeyerite | BaFe²⁺₂(Si₂O₇) | Monoclinic | 5.5 | — |
| Anorthite | CaAl₂Si₂O₈ | Triclinic | — | — |
| Anorthoyttrialite-(Y) | Y₄(SiO₄)(Si₃O₁₀) | Triclinic | — | — |
| Anthophyllite | ☐Mg₂Mg₅Si₈O₂₂(OH)₂ | Orthorhombic | — | — |
| Antigorite | Mg₃Si₂O₅(OH)₄ | Monoclinic | — | 2.49 g/cm³ |
| Apachite | Cu₉Si₁₀O₂₉·11H₂O | Monoclinic | — | — |
| Aqualite | (H₃O)₈(Na,K,Sr)₅Ca₆Zr₃Si₂₆O₆₆(OH)₉Cl | Trigonal | — | — |
| Aradite | BaCa₆[(SiO₄)(VO₄)](VO₄)₂F | Trigonal | — | — |
| Aravaite | Ba₂Ca₁₈(SiO₄)₆(PO₄)₃(CO₃)F₃O | Trigonal | — | — |
| Ardennite-(As) | Mn²⁺₄Al₄(AlMg)(VO₄)(SiO₄)₂(Si₃O₁₀)(OH)₆ | Orthorhombic | — | — |
| Ardennite-(V) | Mn²⁺₄Al₄(AlMg)(VO₄)(SiO₄)₂(Si₃O₁₀)(OH)₆ | Orthorhombic | — | — |
| Arfvedsonite | NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Ariegilatite | BaCa₁₂(SiO₄)₄(PO₄)₂F₂O | Trigonal | — | — |
| Armbrusterite | K₅Na₇Mn₁₅[(Si₉O₂₂)₄](OH)₁₀ * 4H₂O | Monoclinic | 3.5 | — |
| Armenite | BaCa₂(Al₆Si₉)O₃₀·2H₂O | Orthorhombic | — | 2.76 g/cm³ |
| Armstrongite | CaZr(Si₆O₁₅)·2H₂O | Monoclinic | — | — |
| Arsenmedaite | Mn²⁺₆ As₅+Si₅O₁₈(OH) | Monoclinic | — | — |
| Arzamastsevite | K₆Al₅Si₆O₂₀(OH)₄Cl | Tetragonal | — | — |
| Asbecasite | Ca₃(Ti,Sn₄+)Be₂(AsO₃)₆(SiO₄)₂ | Trigonal | — | — |