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Minerals containing magnesium
793 minerals
Magnesium — element
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Calciojohillerite | NaCaMg₃(AsO₄)₃ | Monoclinic | — | — |
| Calciomurmanite | (Na,☐)₂Ca(Ti,Mg,Nb)₄[Si₂O₇]₂O₂(OH,O)₂(H₂O)₄ | Triclinic | — | — |
| Callaghanite | Cu₂Mg₂(CO₃)(OH)₆ * 2H₂O | Monoclinic | — | — |
| Camanchacaite | NaCaMg₂[AsO₄][AsO₃(OH)]₂ | Monoclinic | — | — |
| Camgasite | CaMg(AsO₄)(OH)·5H₂O | Monoclinic | — | — |
| Caminite | Mg₇(SO₄)₅(OH)₄·H₂O | Tetragonal | — | — |
| Canavesite | Mg₂(HBO₃)(CO₃)·5H₂O | Monoclinic | — | — |
| Carboborite | Ca₂Mg[B(OH)₄]₂(CO₃)₂·4H₂O | Monoclinic | — | — |
| Carlfrancisite | Mn²⁺₃(Mn²⁺,Mg,Fe³⁺,Al)₄₂(As³⁺O₃)₂(As⁵⁺O₄)₄[(Si,As⁵⁺)O₄]₆[(As⁵⁺,Si)O₄]₂(OH)₄₂ | Trigonal | — | — |
| Carlosruizite | K₃Na₂Na₃Mg₅(IO₃)₆(SeO₄)₆·6H₂O | Trigonal | — | — |
| Carlosturanite | (Mg,Fe²⁺,Ti)₂₁(Si,Al)₁₂O₂₈(OH)₃₄·H₂O | — | — | — |
| Carnallite | KMgCl₃·6H₂O | Orthorhombic | 2.5 | — |
| Caryochroite | (Na,Sr)₃(Fe³⁺,Mg)₁₀Ti₂Si₁₂O₃₇(H₂O,O,OH)₁₇ | Monoclinic | — | — |
| Cattiite | Mg₃(PO₄)₂ * 2₂H₂O | Triclinic | — | — |
| Cerite-(CeCa) | (Ce₇Ca₂)☐Mg(SiO₄)₃(SiO₃OH)₄(OH)₃ | — | — | — |
| Chabazite-Mg | (Mg₀.₇K₀.₅Ca₀.₅Na₀.₁)[Al₃Si₉O₂₄]·10H₂O | Trigonal | — | — |
| Chamosite | (Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈ | Monoclinic | 3.0 | — |
| Chayesite | KMg₄Fe³⁺[Si₁₂O₃₀] | — | 6.5 | — |
| Chelkarite | CaMgB₂O₄(Cl,OH)₂ * 5H₂O Or near, with Cl:OH = ₃:₁ | — | — | — |
| Chenowethite | Mg(H₂O)₆[(UO₂)₂(SO₄)₂(OH)₂]·5H₂O | — | — | — |
| Chernykhite | (Ba,Na)(V³⁺,Al,Mg)₂((Si,Al)₄O₁₀)(OH)₂ | — | — | — |
| Chessexite | Na₄Ca₂Mg₃Al₈(SiO₄)₂(SO₄)₁₀(OH)₁₀·40H₂O | Orthorhombic | — | — |
| Chesterite | Mg₁₇Si₂₀O₅₄(OH)₆ | Orthorhombic | — | — |
| Chestermanite | Mg₂(Fe³⁺,Mg,Al,Sb⁵⁺)O₂(BO₃) | Orthorhombic | — | — |
| Chevkinite-(Ce) | (Ce,La,Ca,Th)₄(Fe²⁺,Mg)(Fe²⁺,Ti,Fe³⁺)₂(Ti,Fe³⁺)₂(Si₂O₇)₂O₈ | Monoclinic | — | — |
| Chinchorroite | Na₂Mg₅(As₂O₇)₂(AsO₃OH)₂(H₂O)₁₀ | Triclinic | — | — |
| Chinnerite | [Mg(H₂O)₆]Na(H₂O)₂Al₃(PO₄)₂F₆ | Monoclinic | — | — |
| Chladniite | Na₂CaMg₇(PO₄)₆ | Trigonal | — | — |
| Chlorartinite | Mg₂CO₃Cl(OH)·2.5H₂O | Trigonal | — | — |
| Chloritoid | (Fe²⁺,Mg,Mn²⁺)Al₂(SiO₄)O(OH)₂ | — | 6.5 | — |
| Chlormagaluminite | Mg₄Al₂(OH)₁₂Cl₂(H₂O)₂ | Hexagonal | — | — |
| Chloromagnesite | MgCl₂ | Hexagonal | — | 2.28 g/cm³ |
| Chlorophoenicite | (Mn,Mg)₃Zn₂(AsO₄)(OH,O)₆ | Monoclinic | — | — |
| Chondrodite | Mg₅(SiO₄)₂F₂ | Monoclinic | — | 3.09 g/cm³ |
| Chongite | Ca₃Mg₂(AsO₄)₂(AsO₃OH)₂·4H₂O | Monoclinic | — | — |
| Chopinite | (Mg,Fe²⁺)₃(PO₄)₂ | 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 | — |
| Chrysotile | Mg₃Si₂O₅(OH)₄ | Orthorhombic | — | 2.49 g/cm³ |
| Chudobaite | (Mg,Zn)₅(AsO₄)₂(HAsO₄)₂ * 10H₂O | Triclinic | — | — |
| Cianciulliite | Mg₂Mn²⁺Zn₂(OH)₁₀·2-4H₂O | — | — | — |
| Clino-ferri-holmquistite | ☐Li₂(Mg₃Fe³⁺₂)Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Clino-suenoite | ☐Mn₂²⁺Mg₅Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Clinochlore | Mg₅Al(AlSi₃O₁₀)(OH)₈ | Monoclinic | — | — |
| Clinoenstatite | MgSiO₃ | Monoclinic | — | — |
| Clinohumite | Mg₉(SiO₄)₄F₂ | Monoclinic | 6.0 | — |
| Clinojimthompsonite | (Mg,Fe)₅Si₆O₁₆(OH)₂ | Monoclinic | — | — |
| Clinokurchatovite | Ca(Mg,Fe²⁺,Mn²⁺)[B₂O₅] | Monoclinic | — | — |
| Clintonite | CaAlMg₂(SiAl₃)O₁₀(OH)₂ | Monoclinic | — | — |
| Coalingite | Mg₁₀Fe³⁺₂(CO₃)(OH)₂₄·2H₂O | Trigonal | — | — |
| Cobaltarthurite | (Co,Mg)Fe³⁺₂(AsO₄)₂(OH)₂ * 4H₂O | — | — | — |
| Collinsite | Ca₂Mg(PO₄)₂·2H₂O | Triclinic | — | — |
| Columbite-(Mg) | MgNb₂O₆ | Orthorhombic | — | 4.89 g/cm³ |
| Congolite | (Fe²⁺,Mg)₃(B₇O₁₃)Cl | Trigonal | — | — |
| 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 | — | — | — |
| Cossaite | (Mg₀.₅,☐)Al₆(SO₄)₆(HSO₄)F₆·36H₂O | Trigonal | — | — |
| Cousinite | MgU₂Mo₂O₁₁ * 6H₂O | — | — | — |
| Cranswickite | Mg(SO₄)·4H₂O | Monoclinic | — | — |
| Cuatrocapaite-(K) | K₃(NaMg☐)(As₂O₃)₆Cl₆(H₂O)₁₆ | Trigonal | — | — |
| Cuatrocapaite-(NH4) | (NH₄)₃(NaMg☐)(As₂O₃)₆Cl₆·(H₂O)₁₆ | Trigonal | — | — |
| Cummingtonite | ☐Mg₂Mg₅Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Currierite | Na₄Ca₃MgAl₄(AsO₃OH)₁₂·9H₂O | Hexagonal | — | — |
| Cyprine | Ca₁₉Cu²⁺(Al₁₀Mg₂)Si₁₈O₆₈(OH)₁₀ | Tetragonal | — | — |
| Czochralskiite | Na₄Ca₃Mg(PO₄)₄ | Orthorhombic | — | — |
| D'ansite | Na₂₁Mg(SO₄)₁₀Cl₃ | Cubic | — | — |
| Dacostaite | K(Mg₂Al)[Mg(H₂O)₆]₂(AsO₄)₂F₆·2H₂O | Monoclinic | — | — |
| Dashkovaite | Mg(HCOO)₂·2H₂O | Monoclinic | 1.0 | 1.75 g/cm³ |
| Delhuyarite-(Ce) | Ce₄Mg(Fe³⁺₂W)☐(Si₂O₇)₂O₆(OH)₂ | Monoclinic | — | — |
| Desautelsite | Mg₆Mn³⁺₂(CO₃)(OH)₁₆·4H₂O | Trigonal | — | — |
| Dickthomssenite | MgV₂O₆·7H₂O | Monoclinic | 2.5 | — |
| Dingdaohengite-(Ce) | (Ce,La)₄Fe²⁺(Ti,Fe²⁺,Mg,Fe³⁺)₂Ti₂Si₄O₂₂ | Monoclinic | — | — |
| Diopside | CaMgSi₂O₆ | Monoclinic | — | 3.15 g/cm³ |
| Direnzoite | NaK₆MgCa₂(Al₁₃Si₄₇)O₁₂₀·36H₂O | Orthorhombic | — | — |
| Dissakisite-(Ce) | {CaCe}{Al₂Mg}(Si₂O₇)(SiO₄)O(OH) | Monoclinic | — | — |
| Dissakisite-(La) | {CaLa}{Al₂Mg}(Si₂O₇)(SiO₄)O(OH) | Monoclinic | — | — |
| Dittmarite | (NH₄)Mg(PO₄)·H₂O | — | — | — |