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Minerals containing magnesium
793 minerals
Magnesium — element
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Achyrophanite | (K,Na)₃(Fe³⁺,Ti,Al,Mg)₅O₂(AsO₄)₅ | Orthorhombic | — | — |
| Actinolite | Ca₂(Mg,Fe)₅[OH|Si₄O₁₁]₂ | Monoclinic | — | — |
| Adelite | CaMgAsO₄(OH) | Orthorhombic | 5.0 | — |
| Admontite | MgB₆O₁₀·7H₂O | Monoclinic | — | — |
| Adrianite | Ca₁₂(Al₄Mg₃Si₇)O₃₂Cl₆ | Cubic | — | — |
| Aegirine-augite | (Ca,Na)(Fe³⁺,Mg,Fe²⁺)Si₂O₆ | Monoclinic | — | — |
| Aerinite | (Ca,Na)₆(Fe³⁺,Fe²⁺,Mg,Al)₄(Al,Mg)₆Si₁₂O₃₆(OH)₁₂(CO₃)·12H₂O | — | 3.0 | 2.48 g/cm³ |
| Akimotoite | MgSiO₃ | Trigonal | — | — |
| Aksaite | MgB₆O₇(OH)₆·2H₂O | Orthorhombic | — | — |
| Albrechtschraufite | MgCa₄F₂[UO₂(CO₃)₃]₂·17-18H₂O | Triclinic | 2.8 | 2.60 g/cm³ |
| Aldermanite | Mg₅Al₁₂(PO₄)₈(OH)₂₂·32H₂O | Orthorhombic | 2.0 | — |
| Aliettite | Ca₀.₂Mg₆(Si,Al)₈O₂₀(OH)₄·4H₂O | Monoclinic | — | — |
| Alluaudite | (Na,Ca)(Mn,Mg,Fe²⁺)(Fe³⁺,Mn²⁺)₂(PO₄)₃ | Monoclinic | — | — |
| Almarudite | K(☐,Na)₂(Mn,Fe,Mg)₂[(Be,Al)₃Si₁₂]O₃₀ | Hexagonal | 6.0 | 2.72 g/cm³ |
| Alpeite | Ca₄Mn³⁺₂Al₂(Mn³⁺Mg)(SiO₄)₂(Si₃O₁₀)(V₅+O₄)(OH)₆ | Orthorhombic | — | — |
| Alpersite | Mg(SO₄)·7H₂O | Monoclinic | 2.5 | — |
| Althausite | Mg₄(PO₄)₂(OH,O)(F,☐) | Orthorhombic | — | — |
| Aluminoceladonite | K(Mg,Fe²⁺)Al(Si₄O₁₀)(OH)₂ | Monoclinic | — | — |
| Aluminocopiapite | (Al,Mg)Fe³⁺₄(SO₄)₆(OH,O)₂·20H₂O | Triclinic | — | — |
| Aluminomagnesiohulsite | Mg₂AlO₂(BO₃) | Monoclinic | — | — |
| Alumovesuvianite | Ca₁₉Al(Al₁₀Mg₂)Si₁₈O₆₉(OH)₉ | Tetragonal | — | — |
| Alumoåkermanite | (Ca,Na)₂(Al,Mg,Fe²⁺)(Si₂O₇) | Tetragonal | — | — |
| Amesite | Mg₂Al(AlSiO₅)(OH)₄ | Triclinic | — | — |
| Ammoniolasalite | [(NH₄)₂Mg₂(H₂O)₂₀] [V₁₀O₂₈] | Monoclinic | — | — |
| Ammoniomagnesiovoltaite | (NH₄)₂Mg₅Fe³⁺₃Al(SO₄)₁₂·18H₂O | Cubic | — | — |
| Anatolyite | Na₆(Ca,Na)(Mg,Fe³⁺)₃Al(AsO₄)₆ | Trigonal | — | — |
| Angastonite | CaMgAl₂(PO₄)₂(OH)₄·7H₂O | Amorphous | — | — |
| Ankerite | Ca(Fe²⁺,Mg)(CO₃)₂ | Trigonal | — | 3.00 g/cm³ |
| Anthophyllite | ☐Mg₂Mg₅Si₈O₂₂(OH)₂ | Orthorhombic | — | — |
| Antigorite | Mg₃Si₂O₅(OH)₄ | Monoclinic | — | 2.49 g/cm³ |
| Apexite | NaMg(PO₄)·9H₂O | Triclinic | — | — |
| Ardennite-(As) | Mn²⁺₄Al₄(AlMg)(VO₄)(SiO₄)₂(Si₃O₁₀)(OH)₆ | Orthorhombic | — | — |
| Ardennite-(V) | Mn²⁺₄Al₄(AlMg)(VO₄)(SiO₄)₂(Si₃O₁₀)(OH)₆ | Orthorhombic | — | — |
| Aristarainite | Na₂MgB₁₂O₂₀ * 8H₂O | Monoclinic | — | — |
| Armalcolite | (Mg,Fe²⁺)Ti₂O₅ | Orthorhombic | — | — |
| Arseniopleite | (Ca,Na)NaMn²⁺(Mn²⁺,Mg,Fe²⁺)₂(AsO₄)₃ | Monoclinic | — | — |
| Arsenowagnerite | Mg₂(AsO₄)F | Monoclinic | — | — |
| Arsenudinaite | NaMg₄(AsO₄)₃ | Tetragonal | — | 3.83 g/cm³ |
| Artinite | Mg₂CO₃(OH)₂·3H₂O | Monoclinic | 2.5 | — |
| Asbolane | Mn⁴⁺(O,OH)₂·(Co,Ni,Mg,Ca)ₓ(OH)₂ₓ·nH₂O | Hexagonal | — | — |
| Aspidolite | NaMg₃(AlSi₃O₁₀)(OH)₂ | Monoclinic | — | — |
| Atencioite | Ca₂Fe²⁺₃Mg₂Be₄(PO₄)₆(OH)₄ * 6H₂O | Triclinic | — | — |
| Augite | (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)₂O | Monoclinic | — | — |
| Axinite-(Mg) | Ca₂MgAl₂BSi₄O₁₅OH | Triclinic | — | — |
| Azoproite | Mg₂(Ti₀.₅Mg₀.₅)O₂(BO₃) | Orthorhombic | 5.5 | — |
| Badalovite | NaNaMg(MgFe³⁺)(AsO₄)₃ | Monoclinic | — | — |
| Baileychlore | (Zn,Fe²⁺,Al,Mg)₆(Si,Al)₄O₁₀(OH)₈ | Triclinic | — | — |
| Balangeroite | (Mg,Fe²⁺,Fe³⁺,Mn²⁺)₄₂Si₁₆O₅₄(OH)₄₀ | — | — | — |
| Balipholite | BaLiMg₂Al₃(Si₂O₆)₂(OH)₄ | Orthorhombic | — | — |
| Barićite | (Mg,Fe)₃(PO₄)₂·8H₂O | — | — | — |
| Barroisite | ☐NaCa[Mg₃Al₂](Si₇Al)O₂₂(OH)₂ | Monoclinic | 5.5 | — |
| Bayleyite | Mg₂(UO₂)(CO₃)₃ * 18H₂O | Monoclinic | — | — |
| Baylissite | K₂Mg(CO₃)₂·4H₂O | Monoclinic | — | — |
| Beryllocordierite-Na | NaMg₄(Al₅Be)(AlSi₅O₁₈)₂·2H₂O | Orthorhombic | — | — |
| Berzeliite | (NaCa₂)Mg₂(AsO₄)₃ | Cubic | — | — |
| Betpakdalite-CaMg | [Ca₂(H₂O)₁₇Mg(H₂O)₆][Mo⁶⁺₈As⁵⁺₂Fe³⁺₃O₃₆(OH)] | Monoclinic | — | — |
| Bicapite | [KNa₂Mg₂(H₂O)₂₅][H₂PV₅+₁₂O₄₀(V₅+O)₂] | — | — | — |
| Bischofite | MgCl₂·6H₂O | Monoclinic | — | — |
| Bjarebyite | (Ba,Sr)(Mn²⁺,Fe²⁺,Mg)₂Al₂(PO₄)₃(OH)₃ | Monoclinic | — | — |
| Bluestreakite | K₄Mg₂(V⁴⁺₂V⁵⁺₈O₂₈)·14H₂O | Monoclinic | 2.0 | — |
| Blödite | Na₂Mg(SO₄)₂·4H₂O | — | — | — |
| Bobierrite | Mg₃(PO₄)₂·8H₂O | — | — | — |
| Boracite | Mg₃B₇O₁₃Cl | Orthorhombic | — | — |
| Borcarite | Ca₄Mg(B₄O₆(OH)₆)(CO₃)₂ | Triclinic | — | — |
| Bosiite | NaFe³⁺₃(Al₄Mg₂)(Si₆O₁₈)(BO₃)₃(OH)₃O | Trigonal | 7.0 | — |
| Botryogen | MgFe³⁺(SO₄)₂(OH)·7H₂O | Monoclinic | — | — |
| Bouazzerite | Bi₆(Mg,Co)₁₁Fe₁₄(AsO₄)₁₈O₁₂(OH)₄·86H₂O | Monoclinic | — | — |
| Boussingaultite | (NH₄)₂Mg(SO₄)₂·6H₂O | — | — | — |
| Bradleyite | Na₃Mg(CO₃)(PO₄) | Monoclinic | — | 2.79 g/cm³ |
| Brandholzite | MgSb₂(OH)₁₂·6H₂O | Trigonal | — | — |
| Brassite | Mg(AsO₃OH)·4H₂O | Orthorhombic | — | — |
| Bredigite | Ca₇Mg(SiO₄)₄ | Orthorhombic | — | — |
| Brianite | Na₂CaMg(PO₄)₂ | Monoclinic | — | 3.05 g/cm³ |
| Bridgmanite | MgSiO₃ | Orthorhombic | — | — |
| Britvinite | Pb₁₄Mg₉(Si₁₀O₂₈)(BO₃)₄(CO₃)₂(OH)₁₂F₂ | Triclinic | — | — |
| Brucite | Mg(OH)₂ | Trigonal | 2.5 | 2.46 g/cm³ |
| Brugnatellite | Mg₆Fe³⁺(CO₃)(OH)₁₃·4H₂O | Hexagonal | — | — |
| Byströmite | MgSb⁵⁺₂O₆ | Tetragonal | 7.0 | — |
| Cabalzarite | CaMg₂(AsO₄)₂·2H₂O | Monoclinic | — | — |
| Cabrerite | NiMg₂(AsO₄)₂·8H₂O | Monoclinic | — | — |