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Minerals containing magnesium
793 minerals
Magnesium — element
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Sapphirine | Mg₄(Mg₃Al₉)O₄[Si₃Al₉O₃₆] | Monoclinic | 7.5 | — |
| Sarcopside | (Fe²⁺,Mn²⁺,Mg)₃(PO₄)₂ | Monoclinic | — | — |
| Satimolite | KNa₂(Al₅Mg₂)[B₁₂O₁₈(OH)₁₂](OH)₆Cl₄*₄H₂O | — | — | — |
| Satterlyite | (Fe²⁺,Mg,Fe)₁₂(PO₄)₅(PO₃OH)(OH,O)₆ | Trigonal | — | — |
| Savelievaite | Mg₂Cr³⁺O₂(BO₃) | Orthorhombic | — | — |
| Scandio-fluoro-eckermannite | NaNa₂(Mg₄Sc)(Si₈O₂₂)F₂ | Monoclinic | — | — |
| Schertelite | (NH₄)₂MgH₂(PO₄)₂ * 4H₂O | — | — | — |
| Schoenfliesite | MgSn(OH)₆ | — | — | — |
| Schäferite | (NaCa₂)Mg₂(VO₄)₃ | Cubic | 5.0 | — |
| Schüllerite | Ba₂Ti₂Na₂Mg₂(Si₂O₇)₂O₂F₂ | Triclinic | — | — |
| Seelite | Mg(UO₂)₂(AsO₃,AsO₄)₂·7H₂O | — | — | — |
| Sekaninaite | (Fe,Mg)₂Al₃(AlSi₅O₁₈) | Orthorhombic | — | — |
| Sellaite | MgF₂ | Tetragonal | — | 3.19 g/cm³ |
| Sepiolite | Mg₄Si₆O₁₅(OH)₂·6H₂O | Orthorhombic | 2.2 | — |
| Serendibite | Ca₄[Mg₆Al₆]O₄[Si₆B₃Al₃O₃₆] | Triclinic | — | — |
| Sergeevite | Ca₂Mg₁₁(CO₃)₉(HCO₃)₄(OH)₄*₆H₂O | — | — | — |
| Sergeysmirnovite | MgZn₂(PO₄)₂·4H₂O | Orthorhombic | — | — |
| Shabynite | Mg₅(BO₃)(OH)₅(Cl,OH)₂ * 4H₂O | Monoclinic | — | — |
| Shirokshinite | KNaMg₂(Si₄O₁₀)F₂ | Monoclinic | — | 2.79 g/cm³ |
| Shojiite | Na(NaMg)Mg₅Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Shuiskite-(Mg) | Ca₂MgCr₂(Si₂O₇)(SiO₄)(OH)₂ * 2H₂O | Monoclinic | — | — |
| Simferite | LiMg(PO₄) | Orthorhombic | — | 2.89 g/cm³ |
| Sinhalite | MgAlBO₄ | Orthorhombic | — | 3.35 g/cm³ |
| Sklodowskite | Mg(UO₂)₂(SiO₃OH)₂·6H₂O | Monoclinic | — | — |
| Skogbyite | Zr(Mg₂Mn³⁺₄)SiO₁₂ | Tetragonal | — | — |
| Souzalite | (Mg,Fe²⁺)₃(Al,Fe³⁺)₄(PO₄)₄(OH)₆ * 2H₂O | — | — | — |
| Spadaite | MgSiO₂(OH)₂·H₂O (?) | — | — | — |
| Spinel | MgAl₂O₄ | Cubic | 8.0 | 3.58 g/cm³ |
| Stanevansite | Mg(C₂H₃O₃)₂·2H₂O | Monoclinic | — | — |
| Stanfieldite | Ca₄Mg₅(PO₄)₆ | Monoclinic | — | — |
| Starkeyite | MgSO₄·4H₂O | Monoclinic | — | — |
| Stepanovite | NaMgFe³⁺(C₂O₄)₃·9H₂O | Trigonal | 2.0 | — |
| Stevensite | (Ca,Na)xMg₃-x(Si₄O₁₀)(OH)₂ | — | — | — |
| Stichtite | Mg₆Cr₂CO₃(OH)₁₆·4H₂O | Trigonal | — | — |
| Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆·nH₂O | — | — | — |
| Stornesite-(Y) | Na₆(Ca₅Na₃)YMg₄₃(PO₄)₃₆ | — | — | — |
| Strontiowhitlockite | Sr₉Mg(PO₄)₆(PO₃OH) | — | — | — |
| Struvite | H₁₆MgNO₁₀P | Orthorhombic | 2.0 | — |
| Struvite-(K) | KMg(PO₄)·6H₂O | — | — | — |
| Suanite | Mg₂[B₂O₅] | Monoclinic | — | — |
| Sudoite | Mg₂Al₃(Si₃Al)O₁₀(OH)₈ | — | — | — |
| Sulfoborite | Mg₃[B(OH)₄]₂(SO₄)(OH,F)₂ | Orthorhombic | — | — |
| Surinamite | Mg₃Al₃O[Si₃BeAlO₁₅] | — | — | — |
| Surite | (Pb,Ca)₃(Al,Fe²⁺,Mg)₂((Si,Al)₄O₁₀)(CO₃)₂(OH)₂ | — | — | — |
| Sverigeite | NaMnMgSnBe₂(SiO₄)₃(OH) | Orthorhombic | — | — |
| Svornostite-(K) | K₂Mg[(UO₂)(SO₄)₂]₂·8H₂O | Orthorhombic | — | — |
| Svornostite-(NH₄) | (NH₄)₂Mg(UO₂)₂(SO₄)₄(H₂O)₈ | Orthorhombic | — | — |
| Svyazhinite | (Mg,Mn²⁺,Ca)(Al,Fe³⁺)(SO₄)₂F * 14H₂O | — | — | — |
| Swartzite | MgCa(UO₂)(CO₃)₃ * 12H₂O | Monoclinic | — | — |
| Swinefordite | Li(Al,Li,Mg)₄((Si,Al)₄O₁₀)₂(OH,F)₄ * nH₂O | — | — | — |
| Szaibélyite | MgBO₂(OH) | Monoclinic | — | 2.66 g/cm³ |
| Tachyhydrite | CaMg₂Cl₆·12H₂O | Trigonal | 2.0 | — |
| Tainiolite | KLiMg₂Si₄O₁₀F₂ | Monoclinic | — | — |
| Taipingite-(CeCa) | (Ce₇Ca₂)Mg(SiO₄)₃[SiO₃(OH)]₄F₃ | Trigonal | — | — |
| Takéuchiite | Mg₂Mn³⁺O₂(BO₃) | Orthorhombic | — | — |
| Talmessite | Ca₂Mg(AsO₄)₂·2H₂O | — | 5.0 | — |
| Taneyamalite | (Na,Ca)(Mn,Mg,Fe)₁₂Si₁₂(O,OH)₄₄ | — | — | — |
| Tantalite-(Mg) | MgTa₂O₆ | Orthorhombic | — | 7.79 g/cm³ |
| Taramellite | Ba₄(Fe³⁺,Ti,Fe²⁺,Mg)₄(B₂Si₈O₂₇)O₂Clx | — | — | — |
| Taramite | NaCaNa(Mg₃Al₂)Al₂Si₆O₂₂(OH)₂ | Monoclinic | — | — |
| Tashelgite | CaMgFe²⁺Al₉O₁₆(OH) | Monoclinic | — | — |
| Tassieite | NaCa₂Mg₃Fe²⁺₂F³⁺(PO₄)₆·2H₂O | — | — | — |
| Tatarskite | Ca₆Mg₂(SO₄)₂(CO₃)₂(OH)₄Cl₄·7H₂O | Orthorhombic | — | — |
| Tegengrenite | (Mn³⁺₀.₅Sb⁵⁺₀.₅)Mg₂O₄ | Trigonal | — | — |
| Ternovite | MgNb₄O₁₁·8-12H₂O | Monoclinic | — | — |
| Teruggite | Ca₄Mg[AsB₆O₁₁(OH)₆]₂(H₂O)₁₂·2H₂O | Monoclinic | 2.5 | — |
| Tetraferriphlogopite | KMg₃(Fe³⁺Si₃O₁₀)(OH,F)₂ | — | — | — |
| Thadeuite | CaMg₃(PO₄)₂(OH,F)₂ | Orthorhombic | — | — |
| Tilasite | CaMg(AsO₄)F | Monoclinic | — | 3.63 g/cm³ |
| Titantaramellite | Ba₄(Ti,Fe³⁺,Fe²⁺,Mg)₄(B₂Si₈O₂₇)O₂Clx | — | — | — |
| Tochilinite | Fe²⁺₅-₆(Mg,Fe²⁺)₅S₆(OH)₁₀ | — | — | — |
| Todorokite | (Na,Ca,K,Ba,Sr)₁-x(Mn,Mg,Al)₆O₁₂·3-4H₂O | Monoclinic | — | — |
| Tondiite | Cu₃MgCl₂(OH)₆ | Trigonal | — | — |
| Tosudite | Na₀.₅(Al,Mg)₆((Si,Al)₈O₁₈)(OH)₁₂·5H₂O | — | — | — |
| Traskite | Ba₂₁Ca(Fe²⁺,Mn,Ti)₄(Ti,Fe,Mg)₁₂(Si₁₂O₃₆)(Si₂O₇)₆(O,OH)₃₀Cl₆·14H₂O | Hexagonal | — | — |
| Trattnerite | ☐(Fe³⁺,Mg,Fe²⁺)₂(Mg,Fe²⁺,Fe³⁺)₃(Si₁₂O₃₀) | — | — | — |
| Trebiskyite | Na₃Mg₂[TiV₉O₂₈]·22H₂O | Monoclinic | — | — |
| Trembathite | (Mg,Fe)₃(B₇O₁₃)Cl | Trigonal | — | — |
| Tremolite | ☐Ca₂Mg₅Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Tschermakite | ☐Ca₂(Mg₃Al₂)Si₆Al₂O₂₂(OH)₂ | Monoclinic | 5.5 | — |