Minerals containing iron
1,244 minerals
Iron — element
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Magnesionigerite-6N6S | (Mg,Al,Zn)₃(Al,Sn,Fe)₈O₁₅(OH) | — | — | — |
| Magnesiorowlandite-(Y) | Y₄(Mg,Fe)(Si₂O₇)₂F₂ | Triclinic | — | — |
| Magnesiovoltaite | K₂Mg₅Fe³⁺₃Al(SO₄)₁₂*₁₈H₂O | Cubic | — | — |
| Magnetite | Fe²⁺Fe³⁺₂O₄ | Cubic | 6.0 | 5.17 g/cm³ |
| Magnetoplumbite | PbFe³⁺₁₂O₁₉ | — | — | — |
| Maikainite | Cu₁₀Fe₃MoGe₃S₁₆ | — | 4.0 | 4.54 g/cm³ |
| Majorite | Mg₃(Fe²⁺,Si,Al)₂(SiO₄)₃ | Cubic | 7.5 | — |
| Makarochkinite | Ca₄[Fe²⁺₈Fe³⁺₂Ti₂]O₄[Si₈Be₂Al₂O₃₆] | Triclinic | — | — |
| Malhmoodite | FeZr(PO₄)₂ * 4H₂O | Monoclinic | 3.0 | — |
| Manaevite-(Ce) | Ca₁₁(Ce,H₂O,Ca)₈Mg(Al,Fe)₄(Mg,Ti,Fe³⁺)₈[Si₂O₇]₄[(SiO₄)₈(H₄O₄)₂](OH)₉ | Tetragonal | — | — |
| Mandarinoite | Fe³⁺₂(Se⁴⁺O₃)₃·6H₂O | Monoclinic | 2.5 | — |
| Maneckiite | (Na☐)Ca₂Fe²⁺₂(Fe³⁺Mg)Mn₂(PO₄)₆·2H₂O | Orthorhombic | — | — |
| Manganbabingtonite | Ca₂(Mn,Fe)FeSi₅O₁₄(OH) | — | — | — |
| Manganflurlite | ZnMn²⁺₃Fe³⁺(PO₄)₃(OH)₂(H₂O)₇*₂H₂O | Monoclinic | — | — |
| Manganilvaite | CaFe²⁺Fe³⁺Mn²⁺(Si₂O₇)O(OH) | Monoclinic | — | — |
| Mangano-ferri-eckermannite | NaNa₂(Mn²⁺₄Fe³⁺)Si₈O₂₂(OH)₂ | Monoclinic | 5.0 | — |
| Manganobadalovite | NaNaMn(MgFe³⁺)(AsO₄)₃ | Monoclinic | — | — |
| Manganohatertite | NaNaCa(MnFe³⁺)(AsO₄)₃ | Monoclinic | — | — |
| Manganonaujakasite | Na₆(Mn²⁺,Fe²⁺)Al₄Si₈O₂₆ | Monoclinic | — | — |
| Manganosegelerite | (Mn²⁺,Ca)(Mn²⁺,Fe²⁺,Mg)Fe³⁺(PO₄)₂(OH)·4H₂O | — | — | — |
| Manganrockbridgeite | Mn²⁺₂Fe³⁺₃(PO₄)₃(OH)₄(H₂O) | Monoclinic | — | — |
| Manganvesuvianite | Ca₁₉Mn³⁺(Al,Mn³⁺,Fe³⁺)₁₀(Mg,Mn²⁺)₂(Si₂O₇)₄(SiO₄)₁₀O(OH)₉ | Tetragonal | — | 3.40 g/cm³ |
| Maohokite | MgFe₂O₄ | Orthorhombic | — | 4.42 g/cm³ |
| Maoniupingite-(Ce) | (Ce,Ca)₄(Fe³⁺,Ti,Fe²⁺,☐)(Ti,Fe³⁺,Fe²⁺,Nb)₄Si₄O₂₂ | Monoclinic | — | — |
| Mapimite | Zn₂Fe³⁺₃(AsO₄)₃(OH)₄·10H₂O | Monoclinic | — | — |
| Mapiquiroite | (Sr,Pb)(U,Y)Fe₂(Ti,Fe³⁺)₁₈O₃₈ | Trigonal | — | — |
| Marcasite | FeS₂ | Orthorhombic | — | 4.94 g/cm³ |
| Marinaite | Cu₂Fe³⁺O₂(BO₃) | Monoclinic | — | — |
| Mathewrogersite | Pb₇FeAl₃GeSi₁₂O₃₆(OH,H₂O)₆ | Hexagonal | 2.0 | — |
| Mathiasite | (K, Ba, Sr)(Zr, Fe)(Mg,Fe)₂ (Ti,Cr,Fe)₁₈O₃₈ | Trigonal | — | — |
| Matulaite | (Fe³⁺,Al)Al₇(PO₄)₄(PO₃OH)₂(OH)₈(H₂O)₈ * 8H₂O | — | — | — |
| Matyhite | Ca₁₈(Ca,☐)₂Fe²⁺₂(PO₄)₁₄ | Trigonal | — | — |
| Maurogemmiite | Ti₁₀Fe₃O₃ | Hexagonal | — | — |
| Mawbyite | Pb(Fe₁.₅,Zn₀.₅)(AsO₄)₂(OH)₁.₅(H₂O)₀.₅ | Monoclinic | 4.0 | 5.37 g/cm³ |
| Mawsonite | Cu₆Fe₂SnS₈ | Tetragonal | — | — |
| Maxwellite | NaFe³⁺(AsO₄)F | — | — | — |
| Mcauslanite | Fe₃Al₂(PO₄)₃(PO₃OH)F * 18H₂O | Triclinic | — | — |
| Mcgillite | (Mn,Fe)₈Si₆O₁₅(OH)₈Cl₂ | — | — | — |
| Medenbachite | Bi₂Fe³⁺Cu²⁺(AsO₄)₂O(OH)₃ | — | — | — |
| Meizhouite | Fe²⁺V³⁺₂(PO₄)₂(OH)₂ | Monoclinic | — | — |
| Melanarsite | K₃Cu₇Fe³⁺O₄(AsO₄)₄ | Monoclinic | — | — |
| Melanostibite | Mn²⁺(Sb⁵⁺,Fe³⁺)O₃ | Trigonal | — | — |
| Melanotekite | Pb₂Fe³⁺₂(Si₂O₇)O₂ | Orthorhombic | — | — |
| Melanterite | Fe²⁺SO₄·7H₂O | Monoclinic | 2.0 | — |
| Melkovite | [Ca₂(H₂O)₁₅Ca(H₂O)₆][Mo₈P₂Fe³⁺₃O₃₆(OH)] | — | — | — |
| Melliniite | (Ni,Fe)₄P | Cubic | — | — |
| Mendozavilite-KCa | [K₂(H₂O)₁₅Ca(H₂O)₆][Mo₈P₂Fe³⁺₃O₃₄(OH)₃] | Monoclinic | — | — |
| Mendozavilite-NaCu | [Na₂(H₂O)₁₅Cu(H₂O)₆][Mo₈P₂Fe³⁺₃O₃₄(OH)₃] | Monoclinic | — | — |
| Mendozavilite-NaFe | [Na₂(H₂O)₁₅Fe³⁺(H₂O)₆][Mo₈P₂Fe³⁺₃O₃₅(OH)₂] | Monoclinic | — | — |
| Mengxianminite | (Ca,Na)₂Sn₂(Mg,Fe)₃Al₈[(BO₃)(BeO₄)O₆]₂ | Orthorhombic | — | — |
| Mereiterite | K₂Fe(SO₄)₂ * 4H₂O | — | — | — |
| Merrihueite | (K,Na)₂(Fe²⁺,Mg)₅[Si₁₂O₃₀] | Hexagonal | — | — |
| Messelite | Ca₂Fe²⁺(PO₄)₂·2H₂O | Triclinic | 3.5 | — |
| Metahohmannite | Fe³⁺₂(SO₄)₂O * 4H₂O | — | — | — |
| Metakahlerite | Fe²⁺(UO₂)₂(AsO₄)₂ * 8H₂O | — | — | — |
| Metasideronatrite | Na₂Fe(SO₄)₂(OH) * H₂O | Orthorhombic | — | — |
| Metatamboite | Fe³⁺₃(OH)(H₂O)₂(SO₄)(Te₄+O₃)₃(Te₄+O(OH)₂)(H₂O) | Monoclinic | — | — |
| Metavauxite | Fe²⁺Al₂(PO₄)₂(OH)₂ * 8H₂O | Monoclinic | 3.0 | 2.35 g/cm³ |
| Metavivianite | Fe²⁺Fe³⁺₂(PO₄)₂(OH)₂ * 6H₂O | — | — | — |
| Metavoltine | Na₆K₂FeFe₆(SO₄)₁₂O₂·18H₂O | Trigonal | — | — |
| Meurigite-K | KFe³⁺₈(PO₄)₆(OH)₇ * 6.₅H₂O | Monoclinic | — | — |
| Meurigite-Na | [Na(H₂O)₂.₅][Fe³⁺₈(PO₄)₆(OH)₇(H₂O)₄] | Monoclinic | — | — |
| Mianningite | (☐,Pb,Ce,Na)(U⁴⁺,Mn,U⁶⁺)Fe³⁺₂(Ti,Fe³⁺)₁₈O₃₈ | Trigonal | — | — |
| Miharaite | PbCu₄FeBiS₆ | Orthorhombic | — | — |
| Mikasaite | Fe₂(SO₄)₃ | Trigonal | — | 3.04 g/cm³ |
| Milanriederite | Ca₁₉Fe³⁺Al₄(Mg₄Al₄)Si₁₈O₆₇(OH)₁₁ | — | — | — |
| Minguzzite | K₃Fe³⁺(C₂O₄)₃·3H₂O | Monoclinic | — | 2.11 g/cm³ |
| Minnesotaite | Fe²⁺₃Si₄O₁₀(OH)₂ | Triclinic | — | — |
| Mitridatite | Ca₂Fe³⁺₃O₂(PO₄)₃(H₂O)₂·H₂O | Monoclinic | — | — |
| Miyawakiite-(Y) | ◻Y₄Fe₂(Si₈O₂₀)(CO₃)·4(H₂O)₃ | Tetragonal | — | — |
| Moabite | NiFe³⁺(PO₄)O | Orthorhombic | — | — |
| Modderite | (Co,Fe)As | Orthorhombic | 4.0 | — |
| Modraite | Ca₁₉Fe²⁺(Al₁₁Fe²⁺)(SiO₄)₁₀(Si₂O₇)₄O(OH)₉ | Tetragonal | — | — |
| Mogovidite | Na₉(Ca,Na)₁₂Fe₂Zr₃Si₂₅O₇₂(CO₃) (OH)₄ | Trigonal | — | — |
| Mohrite | (NH₄)₂Fe²⁺(SO₄)₂·6H₂O | — | — | — |
| Molysite | FeCl₃ | Hexagonal | — | — |
| Montdorite | (K,Na)₂(Fe²⁺,Mn²⁺,Mg)₅(Si₄O₁₀)₂(OH,F)₄ | — | — | — |
| Monteneveite | Ca₃Sb₅+₂(Fe³⁺₂Fe²⁺)O₁₂ | Cubic | — | — |
| Montroseite | (V³⁺,Fe²⁺,V⁴⁺)O(OH) | — | — | — |
| Mooihoekite | Cu₉Fe₉S₁₆ | Tetragonal | 4.0 | 4.36 g/cm³ |