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Minerals containing silicon
1,605 minerals
Silicon — element
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Chiappinoite-(Y) | Y₂Mn(Si₃O₇)₄ | Orthorhombic | — | — |
| Chiavennite | CaMn²⁺(BeOH)₂Si₅O₁₃·(H₂O)₂ | — | — | — |
| Chibaite | SiO₂·n(CH₄,C₂H₆,C₃H₈,C₄H₁₀) (nmax=3/17) | Cubic | — | — |
| Chirvinskyite | (Na,Ca)₁₃(Fe,Mn,☐)₂(Ti,Zr)₅(Si₂O₇)₄(OH,O)₁₂*₂H₂O | Triclinic | — | — |
| Chivruaiite | Ca₄(Ti,Nb)₅(Si₆O₁₇)₂(OH,O)₅·13-14H₂O | Orthorhombic | — | — |
| Chiyokoite | Ca3Si(CO3)[B(OH)4]O (OH)5·12H2O | Hexagonal | — | — |
| Chkalovite | Na₂BeSi₂O₆ | — | — | 2.61 g/cm³ |
| Chlorellestadite | Ca₅(SiO₄)₁.₅(SO₄)₁.₅Cl | Hexagonal | — | — |
| Chloritoid | (Fe²⁺,Mg,Mn²⁺)Al₂(SiO₄)O(OH)₂ | — | 6.5 | — |
| Chondrodite | Mg₅(SiO₄)₂F₂ | Monoclinic | — | 3.09 g/cm³ |
| Christofschäferite-(Ce) | (Ce,La,Ca)₄Mn(Ti,Fe)₃(Fe,Ti)(Si₂O₇)₂O₈ | Monoclinic | — | — |
| Chromceladonite | K(Mg,Fe²⁺)(Cr,Al)(Si₄O₁₀)(OH)₂ | Monoclinic | — | — |
| Chromio-pargasite | NaCa₂(Mg₄Cr)(Si₆Al₂)O₂₂(OH)₂ | Monoclinic | — | — |
| Chromium-dravite | Na(Mg₃)Cr³⁺₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH) | Trigonal | — | — |
| Chromo-alumino-povondraite | NaCr₃(Al₄Mg₂)(Si₆O₁₈)(BO₃)₃(OH)₃O | Trigonal | 7.5 | — |
| Chromphyllite | K(Cr,Al)₂(AlSi₃O₁₀)(OH,F)₂ | — | — | — |
| Chrysocolla | Cu₂₋ₓAlₓ(H₂₋ₓSi₂O₅)(OH)₄ · nH₂O | Orthorhombic | — | — |
| Chrysotile | Mg₃Si₂O₅(OH)₄ | Orthorhombic | — | 2.49 g/cm³ |
| Ciprianiite | Ca₄(ThREE)AlSi₄B₄O₂₂(OH)₂ | — | — | — |
| Clino-ferri-holmquistite | ☐Li₂(Mg₃Fe³⁺₂)Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Clino-ferro-ferri-holmquistite | ☐Li₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Clino-suenoite | ☐Mn₂²⁺Mg₅Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Clinochlore | Mg₅Al(AlSi₃O₁₀)(OH)₈ | Monoclinic | — | — |
| Clinoenstatite | MgSiO₃ | Monoclinic | — | — |
| Clinoferrosilite | Fe²⁺SiO₃ | Monoclinic | — | — |
| Clinohedrite | CaZn(SiO₄) * H₂O | Monoclinic | — | — |
| Clinohumite | Mg₉(SiO₄)₄F₂ | Monoclinic | 6.0 | — |
| Clinojimthompsonite | (Mg,Fe)₅Si₆O₁₆(OH)₂ | Monoclinic | — | — |
| Clinophosinaite | Na₁₂(Ca,Sr)₄(Si₄O₁₂)(PO₄)₄ | Monoclinic | — | — |
| Clinoptilolite-Ca | Ca₃(Si₃₀Al₆)O₇₂*₂₀H₂O | Monoclinic | — | — |
| Clinoptilolite-K | K₆(Si₃₀Al₆)O₇₂*₂₀H₂O | Monoclinic | — | — |
| Clinoptilolite-Na | Na₆(Si₃₀Al₆)O₇₂*₂₀H₂O | Monoclinic | — | — |
| Clinotobermorite | Ca₄Si₆O₁₇(H₂O)₂·(Ca·3H₂O) | Monoclinic | — | — |
| Clinozoisite | Ca₂Al₃(Si₂O₇)(SiO₄)O(OH) | Monoclinic | — | — |
| Clintonite | CaAlMg₂(SiAl₃)O₁₀(OH)₂ | Monoclinic | — | — |
| Coesite | SiO₂ | Monoclinic | — | 2.63 g/cm³ |
| Coffinite | U(SiO₄) * nH₂O | Tetragonal | — | — |
| Colinowensite | BaCuSi₂O₆ | Tetragonal | — | — |
| Colomeraite | NaTi³⁺Si₂O₆ | Monoclinic | — | — |
| Combeite | Na₂Ca₂Si₃O₉ | Trigonal | — | — |
| Cookeite | (Al,Li)₃Al₂(Si,Al)₄O₁₀(OH)₈ | — | — | — |
| Coombsite | K(Mn,Fe,Mg)₁₃(Si,Al)₁₈O₄₂(OH)₁₄ | — | — | — |
| Cordierite | Mg₂Al₄Si₅O₁₈ | Orthorhombic | — | 2.42 g/cm³ |
| Corrensite | (Mg,Fe)₉((Si,Al)₈O₂₀)(OH)₁₀ * nH₂O | — | — | — |
| Cortesognoite | CaV₂Si₂O₇(OH)₂·H₂O | Orthorhombic | — | — |
| Coutinhoite | Th_{x}Ba_(₁-₂x)(UO₂)₂Si₅O₁₃ * (H₂O)₁+y | — | — | — |
| Cowlesite | Ca(Al₂Si₃)O₁₀·(5-6)H₂O | Orthorhombic | 5.0 | — |
| Creaseyite | Cu₂Pb₂Fe³⁺₂Si₅O₁₇·6H₂O | Orthorhombic | — | — |
| Cristobalite | SiO₂ | Tetragonal | 6.5 | 2.63 g/cm³ |
| Cronstedtite | Fe²⁺₂Fe³⁺((Si,Fe³⁺)₂O₅)(OH)₄ | — | 3.5 | — |
| Cryptohalite | (NH₄)₂SiF₆ | Cubic | — | 2.01 g/cm³ |
| Cryptophyllite | K₂Ca[Si₄O₁₀]·5H₂O | Monoclinic | — | — |
| Cummingtonite | ☐Mg₂Mg₅Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Cuprorivaite | CaCuSi₄O₁₀ | Tetragonal | — | — |
| Cuprosklodowskite | Cu(UO₂)₂(SiO₃OH)₂·6H₂O | Triclinic | 4.0 | — |
| Cuspidine | Ca₈(Si₂O₇)₂F₄ | Monoclinic | — | — |
| Cymrite | BaAl₂Si₂(O,OH)₈ * H₂O | Monoclinic | — | — |
| Cyprine | Ca₁₉Cu²⁺(Al₁₀Mg₂)Si₁₈O₆₈(OH)₁₀ | Tetragonal | — | — |
| Cámaraite | Ba₃Na(Fe²⁺)₈Ti₄(Si₂O₇)₄O₄(OH)₄F₃ | Triclinic | — | — |
| Dachiardite-Ca | Ca₂(Si₂₀Al₄)O₄₈·13H₂O | Monoclinic | — | — |
| Dachiardite-K | K₄(Si₂₀Al₄)O₄₈·13H₂O | Monoclinic | — | — |
| Dachiardite-Na | Na₄(Si₂₀Al₄)O₄₈·13H₂O | Monoclinic | — | — |
| Dalnegorskite | Ca₅Mn(Si₃O₉)₂ | Triclinic | — | — |
| Dalyite | K₂ZrSi₆O₁₅ | — | 7.5 | — |
| Danalite | Be₃Fe²⁺₄(SiO₄)₃S | Cubic | — | — |
| Danburite | CaB₂Si₂O₈ | Orthorhombic | — | — |
| Darapiosite | KNa₂Mn₂(Li₂ZnSi₁₂)O₃₀ | — | 5.0 | — |
| Dargaite | BaCa₁₂(SiO₄)₄(SO₄)₂O₃ | Trigonal | — | — |
| Darrellhenryite | Na(Al₂Li)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃O | Trigonal | 7.0 | — |
| Datolite | CaB(SiO₄)(OH) | Monoclinic | — | — |
| Davanite | K₂TiSi₆O₁₅ | — | — | — |
| Davemaoite | CaSiO₃ | Cubic | — | 2.90 g/cm³ |
| Davidsmithite | (Ca,☐)₂Na₆Al₈Si₈O₃₂ | Hexagonal | — | — |
| Davinciite | Na₁₂K₃Ca₆Fe²⁺₃Zr₃(Si₂₆O₇₃OH)Cl₂ | Trigonal | — | — |
| Davisite | CaScAlSiO₆ | Monoclinic | — | — |
| Davreuxite | Mn²⁺Al₆Si₄O₁₇(OH)₂ | Monoclinic | — | — |
| Davyne | (Na,Ca,K)₈(Si,Al)₁₂O₂₄(Cl,SO₄,CO₃)₂₋₃ | Hexagonal | — | — |
| Deerite | (Fe,Mn)₆(Fe,Al)₃[Si₆O₁₇]O₃(OH)₅ | — | — | — |
| Defernite | Ca₆(CO₃)₂-x(SiO₄)x(OH)₇(Cl,OH)₁-₂x (x<₀.₅) | Orthorhombic | — | — |
| Delhayelite | K₇Na₃Ca₅Al₂Si₁₄O₃₈F₄Cl₂ | — | — | — |