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Approved minerals
4,194 minerals
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Mengxianminite | (Ca,Na)₂Sn₂(Mg,Fe)₃Al₈[(BO₃)(BeO₄)O₆]₂ | Orthorhombic | — | — |
| Meniaylovite | Ca₄AlSi(SO₄)F₁₃·12H₂O | Cubic | — | — |
| Menshikovite | Pd₃Ni₂As₃ | Hexagonal | 5.0 | — |
| Menzerite-(Y) | (CaY₂)Mg₂(SiO₄)₃ | Cubic | — | — |
| Mereheadite | Pb₄₇Cl₂₅(OH)₁₃O₂₄(CO₃)(BO₃)₂ | Monoclinic | 3.5 | — |
| Mereiterite | K₂Fe(SO₄)₂ * 4H₂O | — | — | — |
| Merelaniite | Pb₄Mo₄VSbS₁₅ | Triclinic | — | — |
| Merenskyite | PdTe₂ | Trigonal | — | 8.00 g/cm³ |
| Meridianiite | MgSO₄·11H₂O | Triclinic | — | — |
| Merlinoite | K₅Ca₂(Si₂₃Al₉)O₆₄·24H₂O | Orthorhombic | 4.5 | — |
| Merrihueite | (K,Na)₂(Fe²⁺,Mg)₅[Si₁₂O₃₀] | Hexagonal | — | — |
| Mesaite | CaMn²⁺₅(V₂O₇)₃·12H₂O | Monoclinic | — | — |
| Mesolite | Na₂Ca₂(Si₉Al₆)O₃₀·8H₂O | Orthorhombic | 5.0 | — |
| Messelite | Ca₂Fe²⁺(PO₄)₂·2H₂O | Triclinic | 3.5 | — |
| Meta-aluminite | Al₂(SO₄)(OH)₄ * 5H₂O | — | — | — |
| Meta-ankoleite | K₂(UO₂)₂(PO₄)₂ * 6H₂O | — | — | 3.54 g/cm³ |
| Metaborite | HBO₂ | Cubic | — | 2.10 g/cm³ |
| Metacalciouranoite | (Ca,Na,Ba)U₂O₇·2H₂O | — | — | — |
| Metadelrioite | SrCa(VO₃)₂(OH)₂ | Triclinic | — | — |
| Metahaiweeite | Ca(UO₂)₂Si₆O₁₅ * nH₂O | — | — | — |
| Metaheimite | PbCu₂(AsO₄)(OH)₃ | Monoclinic | — | — |
| Metaköttigite | — | — | — | — |
| Metamunirite | NaVO₃ | Orthorhombic | — | 2.93 g/cm³ |
| Metarauchite | Ni(UO₂)₂(AsO₄)₂·8H₂O | Triclinic | 2.0 | — |
| Metaschoderite | Al₂(PO₄)(VO₄) * 6H₂O | — | — | — |
| Metastudtite | UO₄ * 2H₂O | — | — | — |
| Metatamboite | Fe³⁺₃(OH)(H₂O)₂(SO₄)(Te₄+O₃)₃(Te₄+O(OH)₂)(H₂O) | Monoclinic | — | — |
| Metathénardite | — | Hexagonal | — | — |
| Metauroxite | — | — | — | — |
| Metavanmeersscheite | U₆+(UO₂)₃(PO₄)₂(OH)₆ * 2H₂O | — | — | — |
| Metavanuralite | Al(UO₂)₂(VO₄)₂(OH)·8H₂O | Triclinic | — | — |
| Metavariscite | AlPO₄·2H₂O | Monoclinic | 3.5 | — |
| Metavivianite | Fe²⁺Fe³⁺₂(PO₄)₂(OH)₂ * 6H₂O | — | — | — |
| Metazellerite | Ca(UO₂)(CO₃)₂ * 3H₂O | Orthorhombic | — | — |
| Meurigite-Na | [Na(H₂O)₂.₅][Fe³⁺₈(PO₄)₆(OH)₇(H₂O)₄] | Monoclinic | — | — |
| Meyrowitzite | Ca(UO₂)(CO₃)₂·5H₂O | Monoclinic | — | — |
| Mgriite | Cu₃AsSe₃ | Cubic | — | — |
| Mianningite | (☐,Pb,Ce,Na)(U⁴⁺,Mn,U⁶⁺)Fe³⁺₂(Ti,Fe³⁺)₁₈O₃₈ | Trigonal | — | — |
| Miassite | Rh₁₇S₁₅ | Cubic | — | 7.53 g/cm³ |
| Michalskiite | — | Orthorhombic | — | — |
| Micheelsenite | (Ca,Y)₃Al(HPO₄,CO₃)(CO₃)(OH)₆ * 12H₂O | Hexagonal | — | — |
| Michitoshiite-(Cu) | — | Cubic | — | — |
| Midbarite | Ca₃Mg₂(V₂Si)O₁₂ | Cubic | — | — |
| Middendorfite | K₃Na₂Mn₅Si₁₂(O,OH)₃₆·2H₂O | Monoclinic | — | — |
| Middlebackite | Cu₂C₂O₄(OH)₂ | Monoclinic | — | — |
| Mieite-(Y) | Y₄Ti(SiO₄)₂O[F,(OH)]₆ | Orthorhombic | — | — |
| Miessiite | Pd₁₁Te₂Se₂ | Cubic | — | — |
| Miguelromeroite | MnMn₂Mn₂(AsO₄)₂(HAsO₄)₂ * 4H₂O | Monoclinic | — | — |
| Miharaite | PbCu₄FeBiS₆ | Orthorhombic | — | — |
| Mikasaite | Fe₂(SO₄)₃ | Trigonal | — | 3.04 g/cm³ |
| Mikecoxite | [CHg₄]OCl₂ | Monoclinic | — | — |
| Mikenewite | Mn²⁺(S⁴⁺O₃)·3H₂O | Monoclinic | — | — |
| Milanriederite | Ca₁₉Fe³⁺Al₄(Mg₄Al₄)Si₁₈O₆₇(OH)₁₁ | — | — | — |
| Millsite | Cu²⁺(Te₄+O₃)·2H₂O | Monoclinic | — | — |
| Milotaite | PdSbSe | Cubic | 4.5 | 8.09 g/cm³ |
| Minakawaite | RhSb | Orthorhombic | — | 10.04 g/cm³ |
| Mineevite-(Y) | Na₂₅Ba(Y,Gd,Dy)₂(CO₃)₁₁(HCO₃)₄(SO₄)₂F₂Cl | Hexagonal | — | — |
| Minehillite | (K,Na)₂-₃Ca₂₈Zn₄Al₄Si₄₀O₁₁₂(OH)₁₆ | — | — | — |
| Minjiangite | Ba[Be₂P₂O₈] | Hexagonal | — | — |
| Minohlite | (Cu,Zn)₇(SO₄)₂(OH)₁₀·8H₂O | Hexagonal | — | — |
| Minrecordite | CaZn(CO₃)₂ | Trigonal | 3.5 | — |
| Mirnyite | — | Trigonal | — | — |
| Misakiite | Cu₃Mn(OH)₆Cl₂ | Trigonal | — | — |
| Mitrofanovite | Pt₃Te₄ | Trigonal | — | 10.64 g/cm³ |
| Mitryaevaite | Al₆(PO₄)((P,S)O₃(OH,O))₂F₂(OH)₂ * 14.₅H₂O | Triclinic | — | — |
| Miyahisaite | (Sr,Ca)₂Ba₃(PO₄)₃F | Hexagonal | — | — |
| Miyawakiite-(Y) | ◻Y₄Fe₂(Si₈O₂₀)(CO₃)·4(H₂O)₃ | Tetragonal | — | — |
| Moabite | NiFe³⁺(PO₄)O | Orthorhombic | — | — |
| Moctezumite | Pb(UO₂)(TeO₃)₂ | Monoclinic | 3.0 | 7.28 g/cm³ |
| Modraite | Ca₁₉Fe²⁺(Al₁₁Fe²⁺)(SiO₄)₁₀(Si₂O₇)₄O(OH)₉ | Tetragonal | — | — |
| Mogovidite | Na₉(Ca,Na)₁₂Fe₂Zr₃Si₂₅O₇₂(CO₃) (OH)₄ | Trigonal | — | — |
| Mohite | Cu₂SnS₃ | Monoclinic | — | — |
| Mohrite | (NH₄)₂Fe²⁺(SO₄)₂·6H₂O | — | — | — |
| Moiraite | Pb₁₂Sb₈As₈S₃₆ | Triclinic | — | — |
| Mojaveite | Cu₆[Te⁶⁺O₄(OH)₂](OH)₇Cl | Trigonal | — | — |
| Molinelloite | Cu(H₂O)(OH)V₄+O(V₅+O₄) | Triclinic | — | — |
| Molybdofornacite | CuPb₂MoO₄AsO₄(OH) | Monoclinic | — | 6.60 g/cm³ |
| Momoiite | (Mn²⁺,Ca)₃V³⁺₂(SiO₄)₃ | Cubic | 6.5 | — |
| Monazite-(Gd) | Gd(PO₄) | Monoclinic | — | 5.55 g/cm³ |
| Monazite-(Nd) | NdPO₄ | Monoclinic | — | 5.42 g/cm³ |