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Minerals containing magnesium
793 minerals
Magnesium — element
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Penikisite | BaMg₂Al₂(PO₄)₃(OH)₃ | — | — | — |
| Pentahydrite | MgSO₄·5H₂O | Triclinic | 2.5 | 1.76 g/cm³ |
| Periclase | MgO | Cubic | 5.5 | 3.63 g/cm³ |
| Perrierite-(Ce) | Ce₄MgFe³⁺₂Ti₂(Si₂O₇)₂O₈ | Monoclinic | — | — |
| Pertlikite | K₂(Fe²⁺,Mg)₂(Mg,Fe³⁺)₄Fe³⁺₂Al(SO₄)₁₂·18H₂O | — | — | — |
| Pertsevite-(F) | Mg₂(BO₃)(F,OH) | Orthorhombic | — | — |
| Pertsevite-(OH) | Mg₂(BO₃)(OH) | Orthorhombic | — | — |
| Philolithite | Pb₁₂Mn²⁺(Mg,Mn²⁺)₂(Mn²⁺,Mg)₄(CO₃)₄(SO₄)O₆(OH)₁₂Cl₄ | Tetragonal | — | — |
| Philoxenite | (K,Na,Pb)₄(Na,Ca)₂(Mg,Cu)₃(Fe³⁺₀.₅Al₀.₅)(SO₄)₈ | Triclinic | — | — |
| Phlogopite | KMg₃(Si₃Al)O₁₀(OH)₂ | Monoclinic | 2.5 | 2.81 g/cm³ |
| Phosphoellenbergerite | (Mg,☐)₂Mg₁₂(PO₄,PO₃OH)₆(PO₃OH,CO₃)₂(OH)₆ | Hexagonal | — | — |
| Phoxite | (NH₄)₂Mg₂(C₂O₄)(PO₃OH)₂(H₂O)₄ | Monoclinic | — | — |
| Pickeringite | MgAl₂(SO₄)₄·22H₂O | Monoclinic | — | — |
| Picromerite | K₂Mg(SO₄)₂·6H₂O | Monoclinic | 2.5 | — |
| Picropharmacolite | Ca₄Mg(AsO₃OH)₂(AsO₄)₂·11H₂O | Triclinic | — | — |
| Pigeonite | (Mg,Fe,Ca)SiO₃ | Monoclinic | 6.0 | — |
| Pinakiolite | (Mg,Mn)₂(Mn³⁺,Sb⁵⁺)O₂(BO₃) | Monoclinic | 6.0 | — |
| Pinnoite | MgB₂O(OH)₆ | Tetragonal | — | — |
| Plumboferrite | Pb₂(Fe³⁺,Mn²⁺,Mg)₁₁O₁₉ | — | — | — |
| Plumbogottlobite | PbMg(VO₄)(OH) | Orthorhombic | — | — |
| Pokrovskite | Mg₂(CO₃)(OH)₂ | Monoclinic | — | — |
| Polyakovite-(Ce) | (Ce,Ca)₄(Mg,Fe²⁺)(Cr³⁺,Fe³⁺)₂(Ti,Nb)₂(Si₂O₇)₂O₈ | Monoclinic | — | — |
| Polyarsite | Na₇CaMgCu₂(AsO₄)₄F₂Cl | Monoclinic | — | — |
| Polyhalite | K₂Ca₂Mg(SO₄)₄·2H₂O | Triclinic | 3.5 | — |
| Postite | Mg(H₂O)₆Al₂(OH)₂(H₂O)₈(V₁₀O₂₈)·13H₂O | Orthorhombic | — | — |
| Potassic-chloro-pargasite | KCa₂(Mg₄Al)(Si₆Al₂)O₂₂Cl₂ | Monoclinic | — | — |
| Potassic-ferri-leakeite | KNa₂(Mg₂Fe³⁺₂Li)Si₈O₂₂(OH)₂ | Monoclinic | 5.0 | — |
| Potassic-fluoro-pargasite | KCa₂(Mg₄Al)(Si₆Al₂)O₂₂F₂ | Monoclinic | — | — |
| Potassic-fluoro-richterite | K(NaCa)Mg₅Si₈O₂₂F₂ | Monoclinic | — | — |
| Potassic-jeanlouisite | K(NaCa)(Mg₄Ti)Si₈O₂₂O₂ | Monoclinic | — | — |
| Potassic-magnesio-arfvedsonite | [K][Na₂][Mg₄Fe³⁺]Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Potassic-magnesio-fluoro-arfvedsonite | KNa₂(Mg₄Fe³⁺)Si₈O₂₂F₂ | Monoclinic | 6.0 | — |
| Potassic-magnesio-hastingsite | KCa₂(Mg₄Fe³⁺)(Si₆Al₂)O₂₂(OH)₂ | Monoclinic | — | — |
| Potassic-mangani-leakeite | KNa₂(Mg₂Mn³⁺₂Li)Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Potassic-pargasite | KCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂ | Monoclinic | — | — |
| Potassic-richterite | {K}{CaNa}{Mg₅}Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Potassic-sadanagaite | KCa₂(Mg₃Al₂)(Si₅Al₃)O₂₂(OH)₂ | Monoclinic | 6.0 | — |
| Povondraite | NaFe³⁺₃(Mg₂Fe³⁺₄)(Si₆O₁₈)(BO₃)₃(OH)₃O | Trigonal | 7.0 | — |
| Preiswerkite | NaMg₂Al(Al₂Si₂O₁₀)(OH)₂ | — | — | — |
| Preobrazhenskite | Mg₃B₁₁O₁₅(OH)₉ | Orthorhombic | — | — |
| Prismatine | (☐,Fe,Mg)(Mg,Al,Fe)₅Al₄Si₂(Si,Al)₂(B,Si,Al)(O,OH,F)₂₂ | Orthorhombic | — | — |
| Proto-anthophyllite | ☐Mg₂Mg₅Si₈O₂₂(OH)₂ | Orthorhombic | — | — |
| Protoenstatite | Mg₂Si₂O₆ | Orthorhombic | — | — |
| Pseudodickthomssenite | Mg(VO₃)₂·8H₂O | Cubic | — | — |
| Pseudosinhalite | Mg₂Al₃(BO₃)₂(OH)O₃ | Monoclinic | — | — |
| Pumpellyite-(Mg) | Ca₂MgAl₂(Si₂O₇)(SiO₄)(OH)₂ * H₂O | Monoclinic | — | — |
| Pyroaurite | Mg₆Fe³⁺₂(OH)₁₆[CO₃] * 4H₂O | — | — | — |
| Pyrope | Mg₃Al₂(SiO₄)₃ | Cubic | 7.5 | 3.75 g/cm³ |
| Qandilite | (Mg,Fe³⁺)₂(Ti,Fe³⁺,Al)O₄ | Cubic | 7.0 | — |
| Qingheiite | NaNaMn(MgAl)(PO₄)₃ | Monoclinic | — | — |
| Quintinite | Mg₄Al₂(OH)₁₂(CO₃)·3H₂O | Hexagonal | 2.0 | — |
| Raadeite | Mg₇(PO₄)₂(OH)₈ | Monoclinic | — | 2.71 g/cm³ |
| Rabbittite | Ca₃Mg₃(UO₂)₂(CO₃)₆(OH)₄·18H₂O | Monoclinic | 2.5 | — |
| Raisaite | CuMg[Te⁶⁺O₄(OH)₂]·6H₂O | Monoclinic | — | — |
| Ramazzoite | [Mg₈Cu₁₂(PO₄)(CO₃)₄(OH)₂₄(H₂O)₂₀][(H₀.₃₃SO₄)₃(H₂O)₃₆] | — | — | — |
| Reaphookhillite | MgZn₂(PO₄)₂·4H₂O | Triclinic | — | — |
| Redingtonite | (Fe²⁺,Mg,Ni)(Cr,Al)₂(SO₄)₄*₂₂H₂O | Monoclinic | — | — |
| Retzian-(La) | (Mn²⁺,Mg)₂(La,Ce,Nd)(AsO₄)(OH)₄ | — | — | — |
| Rhabdoborite-(V) | Mg₁₂(V₅+,Mo₆+,W₆+)₁ * 5O₆{[BO₃]₆-x[(P,As)O₄]xF₂-x} (x < ₁) | Hexagonal | — | — |
| Rhabdoborite-(W) | Mg₁₂(W₆+,V₅+)₁ * 5O₆{[BO₃]₆–x[(P,As)O₄]xF₂–x} (x < ₁) | Hexagonal | — | — |
| Richetite | (Fe³⁺,Mg)Pb ₈.₆(UO₂)₃₆O₃₆(OH)₂₄*₄₁H₂O | — | — | — |
| Richterite | Na(NaCa)Mg₅Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Rickturnerite | Pb₇O₄[Mg(OH)₄](OH)Cl₃ | Orthorhombic | — | — |
| Rimkorolgite | (Mg,Mn)₅(Ba,Sr,Ca)(PO₄)₄ * 8H₂O | — | — | — |
| Ringwoodite | SiMg₂O₄ | Cubic | — | 3.24 g/cm³ |
| Rinmanite | ZnSb⁵⁺(Fe³⁺₂Mg)O₇(OH) | Hexagonal | — | — |
| Rittmannite | (Mn²⁺,Ca)Mn²⁺(Fe²⁺,Mn²⁺,Mg)₂(Al,Fe³⁺)₂(PO₄)₄(OH)₂(H₂O)₈ | Monoclinic | — | — |
| Rivadavite | Na₆Mg[B₆O₇(OH)₆]₄ * 10H₂O | Monoclinic | — | — |
| Roedderite | KNaMg₂(Mg₃Si₁₂)O₃₀ | Hexagonal | 6.5 | — |
| Rondorfite | Ca₈Mg(SiO₄)₄Cl₂ | Cubic | — | — |
| Rosemaryite | (Na,Ca,Mn)(Mn,Fe²⁺)(Fe³⁺,Mg)Al(PO₄)₃ | Monoclinic | — | — |
| Roymillerite | Pb₂₄Mg₉(Si₁₀O₂₈)(CO₃)₁₀(BO₃)(SiO₄)(OH)₁₃O₅ | Triclinic | — | 5.97 g/cm³ |
| Ruifrancoite | Ca₂(☐,Mn)₂(Fe³⁺,Mn,Mg)₄Be₄(PO₄)₆(OH)₆·4H₂O | — | — | — |
| Sadanagaite | {Na}{Ca₂}{Mg₃Al₂}(Si₅Al₃O₂₂)(OH)₂ | Monoclinic | — | — |
| Sahamalite-(Ce) | Ce₂Mg(CO₃)₄ | Monoclinic | — | — |
| Sakhaite | Ca₄₈Mg₁₆(BO₃)₃₂(CO₃)₁₆·2(H₂O,HCl) | Cubic | — | — |
| Saléeite | Mg(UO₂)₂(PO₄)₂·10H₂O | Monoclinic | — | — |
| Sanderite | MgSO₄ * 2H₂O | Orthorhombic | — | — |
| Santafeite | (Na,Ca,Sr)₁₂(Mn²⁺,Fe³⁺,Al,Mg)₈Mn₄+₈(VO₄)₁₆(OH,O)₂₀ * 8H₂O | Orthorhombic | — | — |
| Saponite | Ca₀.₂₅(Mg,Fe)₃((Si,Al)₄O₁₀)(OH)₂ * nH₂O | Monoclinic | — | — |