Facts
- Symbol
- Fe
- Atomic number
- 26
- Atomic mass
- 55.8 u
- Minerals
- 1,244
- Period
- 4
- Group
- 8
- Block
- d
- Melting point
- 1,538 °C
- Boiling point
- 2,861 °C
- Discovered
- -5000
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q677
Minerals containing this element · 1,244
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Achalaite | Fe²⁺TiNb₂O₈ | Monoclinic | — | — |
| Achyrophanite | (K,Na)₃(Fe³⁺,Ti,Al,Mg)₅O₂(AsO₄)₅ | Orthorhombic | — | — |
| Achávalite | FeSe | Hexagonal | 2.5 | 4.94 g/cm³ |
| Acmonidesite | (NH₄,K,Pb)₈NaFe²⁺₄(SO₄)₅Cl₈ | Orthorhombic | — | — |
| Actinolite | Ca₂(Mg,Fe)₅[OH|Si₄O₁₁]₂ | Monoclinic | — | — |
| Adachiite | CaFe²⁺₃Al₆(Si₅AlO₁₈)(BO₃)₃(OH)₃(OH) | Trigonal | 7.0 | — |
| Adranosite-(Fe) | (NH₄)₄NaFe₂(SO₄)₄Cl(OH)₂ | Tetragonal | — | — |
| Aegirine | NaFe³⁺Si₂O₆ | Monoclinic | 6.3 | — |
| Aegirine-augite | (Ca,Na)(Fe³⁺,Mg,Fe²⁺)Si₂O₆ | Monoclinic | — | — |
| Aenigmatite | Na₄[Fe²⁺₁₀Ti₂]O₄[Si₁₂O₃₆] | Triclinic | 5.5 | — |
| Aerinite | (Ca,Na)₆(Fe³⁺,Fe²⁺,Mg,Al)₄(Al,Mg)₆Si₁₂O₃₆(OH)₁₂(CO₃)·12H₂O | — | 3.0 | 2.48 g/cm³ |
| Aheylite | Fe²⁺Al₆(PO₄)₄(OH)₈·4H₂O | Triclinic | — | — |
| Ahrensite | γ-Fe₂(SiO₄) | Cubic | 6.0 | — |
| Akaganeite | (Fe³⁺,Ni²⁺)₈(OH,O)₁₆Cl₁.₂₅·nH₂O | Monoclinic | — | — |
| Albertiniite | Fe²⁺(SO₃)·3H₂O | Monoclinic | — | — |
| Alcaparrosaite | K₃Ti⁴⁺Fe³⁺(SO₄)₄O(H₂O)₂ | Monoclinic | — | — |
| Allabogdanite | (Fe,Ni)₂P | Orthorhombic | — | — |
| Allanite-(Ce) | CaCe(Al₂Fe²⁺)[Si₂O₇][SiO₄]O(OH) | Monoclinic | — | — |
| Allanite-(La) | CaLa(Al₂Fe²⁺)[Si₂O₇][SiO₄]O(OH) | Monoclinic | — | — |
| Allanite-(Nd) | CaNd(Al₂Fe²⁺)[Si₂O₇][SiO₄]O(OH) | Monoclinic | — | — |
| Allanite-(Sm) | (CaSm)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH) | Monoclinic | — | — |
| Allanite-(Y) | {CaY}{Al₂Fe²⁺}(Si₂O₇)(SiO₄)O(OH) | Monoclinic | — | — |
| Allanpringite | Fe³⁺₃(PO₄)₂(OH)₃·5H₂O | Monoclinic | 3.0 | — |
| Alluaudite | (Na,Ca)(Mn,Mg,Fe²⁺)(Fe³⁺,Mn²⁺)₂(PO₄)₃ | Monoclinic | — | — |
| Almandine | Fe²⁺₃Al₂(SiO₄)₃ | Cubic | 7.5 | 4.30 g/cm³ |
| Almarudite | K(☐,Na)₂(Mn,Fe,Mg)₂[(Be,Al)₃Si₁₂]O₃₀ | Hexagonal | 6.0 | 2.72 g/cm³ |
| Almeidaite | PbZn₂(Mn,Y)(Ti,Fe³⁺)₁₈O₃₆(OH,O)₂ | Trigonal | — | — |
| Alterite | Zn₂Fe³⁺₄(SO₄)₄(C₂O₄)₂(OH)₄ * 17H₂O | Monoclinic | — | — |
| Aluminoceladonite | K(Mg,Fe²⁺)Al(Si₄O₁₀)(OH)₂ | Monoclinic | — | — |
| Aluminocopiapite | (Al,Mg)Fe³⁺₄(SO₄)₆(OH,O)₂·20H₂O | Triclinic | — | — |
| Aluminocoquimbite | AlFe(SO₄)₃·9H₂O | Trigonal | — | — |
| Alumoåkermanite | (Ca,Na)₂(Al,Mg,Fe²⁺)(Si₂O₇) | Tetragonal | — | — |
| Amakinite | Fe(OH)₂ | Trigonal | — | — |
| Amarantite | Fe³⁺₂O(SO₄)₂·7H₂O | Triclinic | 2.5 | — |
| Amarillite | NaFe³⁺(SO₄)₂·6H₂O | Monoclinic | — | — |
| Ammoniojarosite | (NH)₄Fe³⁺₃(SO₄)₂(OH)₆ | Trigonal | — | — |
| Ammoniomagnesiovoltaite | (NH₄)₂Mg₅Fe³⁺₃Al(SO₄)₁₂·18H₂O | Cubic | — | — |
| Ammoniovoltaite | (NH₄)₂Fe²⁺₅Fe³⁺₃Al(SO₄)₁₂(H₂O)₁₈ | Cubic | — | — |
| Anandite | BaFe²⁺₃(Si₃Fe³⁺)O₁₀S(OH) | Monoclinic | — | — |
| Anapaite | Ca₂Fe²⁺(PO₄)₂·4H₂O | Triclinic | 3.5 | 2.81 g/cm³ |
| Anatolyite | Na₆(Ca,Na)(Mg,Fe³⁺)₃Al(AsO₄)₆ | Trigonal | — | — |
| Andradite | Ca₃Fe³⁺₂(SiO₄)₃ | Cubic | — | — |
| Andreyivanovite | FeCrP | Orthorhombic | — | 6.65 g/cm³ |
| Andrémeyerite | BaFe²⁺₂(Si₂O₇) | Monoclinic | 5.5 | — |
| Andymcdonaldite | Fe₂TeO₆ | Tetragonal | — | 6.39 g/cm³ |
| Angarfite | NaFe³⁺₅(PO₄)₄(OH)₄·4H₂O | Orthorhombic | — | — |
| Angelellite | Fe³⁺₄(AsO₄)₂O₃ | Triclinic | 5.5 | — |
| Ankerite | Ca(Fe²⁺,Mg)(CO₃)₂ | Trigonal | — | 3.00 g/cm³ |
| Anzaite-(Ce) | Ce₄Fe²⁺Ti₆O₁₈(OH)₂ | Monoclinic | — | — |
| Apuanite | Fe²⁺Fe³⁺₄Sb³⁺₄O₁₂S | Tetragonal | — | — |
| Arakiite | ZnMn²⁺₁₂Fe³⁺₂(As³⁺O₃)(As⁵⁺O₄)₂(OH)₂₃ | Monoclinic | — | — |
| Arfvedsonite | NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Argentojarosite | AgFe³⁺₃(SO₄)₂(OH)₆ | Trigonal | — | — |
| Argentopentlandite | Ag(Fe,Ni)₈S₈ | Cubic | — | — |
| Argentopyrite | AgFe₂S₃ | Monoclinic | — | — |
| Argentotennantite-(Fe) | Ag₆(Cu₄Fe₂)As₄S₁₂S | Cubic | — | — |
| Argentotennantite-(Zn) | Ag₆Cu₄(Fe,Zn)₂As₄S₁₃ | Cubic | — | — |
| Argentotetrahedrite-(Fe) | Ag₆Cu₄(Fe,Zn)₂Sb₄S₁₃ | Cubic | — | — |
| Armalcolite | (Mg,Fe²⁺)Ti₂O₅ | Orthorhombic | — | — |
| Arrojadite-(BaNa) | BaNa₃(NaCa)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH) | Monoclinic | — | — |
Minerals named after it · 56
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Adranosite-(Fe) | (NH₄)₄NaFe₂(SO₄)₄Cl(OH)₂ | Tetragonal | — | — |
| Axinite-(Fe) | — | Triclinic | — | — |
| Barioferrite | BaFe³⁺₁₂O₁₉ | Hexagonal | — | — |
| Betpakdalite-FeFe | [Fe³⁺₂ (H₂O)₁₅(OH)₂Fe³⁺(H₂O)₆][Mo₈As₂Fe³⁺₃ O₃₇] | Monoclinic | — | — |
| Cerchiaraite-(Fe) | Ba₄Fe³⁺₄(Si₄O₁₂)O₂(OH)₄Cl₂[Si₂O₃(OH)₄] | Tetragonal | — | — |
| Chihuahuaite | FeAl₁₂O₁₉ | Hexagonal | — | — |
| Clino-ferri-holmquistite | ☐Li₂(Mg₃Fe³⁺₂)Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Clino-ferro-ferri-holmquistite | ☐Li₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| D'ansite-(Fe) | Na₂₁Fe(SO₄)₁₀Cl₃ | Cubic | — | — |
| Erythrosiderite | K₂Fe³⁺Cl₅·H₂O | — | — | — |
| Feroxyhyte | Fe³⁺O(OH) | Hexagonal | — | — |
| Ferri-taramite | Na(NaCa)(Mg₃Fe³⁺₂)(Si₆Al₂)O₂₂(OH)₂ | Monoclinic | — | — |
| Ferrimuirite | Ba₁₀(Ca₂Fe³⁺₂)[Si₈O₂₄]O₂Cl₁₀ | Tetragonal | — | — |
| Ferro-kaersutite | NaCa₂(Fe²⁺₃Ti⁴⁺Al)(Si₆Al₂)O₂₂O₂ | — | — | — |
| Ferrochiavennite | Ca₁₋₂Fe[(Si,Al,Be)₅Be₂O₁₃(OH)₂]·2H₂O | Monoclinic | 3.0 | — |
| Ferrodimolybdenite | FeMo₂S₄ | Monoclinic | — | — |
| Ferrohögbomite-2N2S | [(Fe²⁺,Mg,Zn,Al)₃(Al,Ti,Fe³⁺)₈O₁₅(OH)]₂ | Hexagonal | — | — |
| Ferroinnelite | Ba₄Ti₂Na(NaFe²⁺)Ti(Si₂O₇)₂[(SO₄)(PO₄)]O₂[O(OH)] | Triclinic | — | — |
| Ferrokësterite | Cu₂FeSnS₄ | Tetragonal | 4.0 | — |
| Ferronigerite-2N1S | (Al,Fe,Zn)₂(Al,Sn)₆O₁₁(OH) | Trigonal | — | — |
| Ferronigerite-6N6S | (Al,Fe,Zn)₃(Al,Sn,Fe)₈O₁₅(OH) | — | — | — |
| Ferroqingheiite | Na₂Fe²⁺MgAl(PO₄)₃ | Monoclinic | — | — |
| Ferrorhodonite | CaMn₃Fe(Si₅O₁₅) | Triclinic | — | — |
| Ferrorhodsite | — | Cubic | — | — |
| Ferrosilite | — | Orthorhombic | — | — |
| Ferroskutterudite | (Fe,Co)As₃ | Cubic | — | — |
| Ferrostalderite | CuFe₂TlAs₂S₆ | Tetragonal | — | — |
| Ferrostrunzite | Fe²⁺Fe³⁺₂(PO₄)₂(OH)₂·6H₂O | — | — | — |
| Ferrotellurite | Fe(Te⁶⁺O₄) (?) | — | — | — |
| Ferrotochilinite | [FeS]·≈0.85[Fe²⁺(OH)₂] | Monoclinic | — | — |
| Ferrovalleriite | 2[(Fe,Cu)S]·1.53[(Fe,Al,Mg)(OH)₂] | Trigonal | — | — |
| Ferrovorontsovite | (Fe₅Cu)∑₆TlAs₄S₁₂ | Cubic | — | — |
| Ferroåkermanite | Ca₂FeSi₂O₇ | Tetragonal | — | — |
| Feruvite | Ca(Fe²⁺)₃MgAl₅(Si₆O₁₈)(BO₃)₃(OH)₃(OH) | Trigonal | 7.0 | — |
| Fibroferrite | Fe³⁺(SO₄)(OH)·5H₂O | Monoclinic | — | — |
| Gjerdingenite-Fe | K₂Fe(Nb,Ti)₄(Si₄O₁₂)₂(O,OH)₄·6H₂O | — | — | — |
| Hexaferrum | (Fe,Os,Ru,Ir) | Hexagonal | — | — |
| Hydroxyferroroméite | (Fe²⁺₁.₅☐₀.₅)Sb⁵⁺₂O₆(OH) | Cubic | 3.0 | 5.45 g/cm³ |
| Jahnsite-(NaFeMg) | NaFe³⁺Mg₂Fe³⁺₂(PO₄)₄(OH)₂·8H₂O | Monoclinic | — | — |
| Julgoldite-(Fe2+) | Ca₂Fe²⁺Fe³⁺₂(Si₂O₇)(SiO₄)(OH)₂·H₂O | Monoclinic | — | — |
| Julgoldite-(Fe3+) | — | Monoclinic | — | — |
| Labuntsovite-Fe | Na₄K₄Fe²⁺₂Ti₈O₄(Si₄O₁₂)₄(OH)₄·10-12H₂O | — | — | — |
| Pharmacosiderite | KFe³⁺₄(AsO₄)₃(OH)₄ * 6-₇H₂O | Cubic | 2.5 | — |
| Phosphoferrite | (Fe²⁺,Mn²⁺)₃(PO₄)₂ * 3H₂O | Orthorhombic | — | — |
| Phosphosiderite | FePO₄ * 2H₂O | Monoclinic | — | — |
| Proto-ferro-anthophyllite | ☐Fe²⁺Fe²⁺₅Si₈O₂₂(OH)₂ | Orthorhombic | — | — |
| Proto-ferro-suenoite | ☐Mn₂²⁺Fe₅²⁺Si₈O₂₂(OH)₂ | Orthorhombic | 5.5 | — |
| Siderazot | Fe₅N₂ | Hexagonal | — | — |
| Siderite | FeCO₃ | Trigonal | 4.0 | 3.96 g/cm³ |
| Sideronatrite | — | Orthorhombic | — | — |
| Siderophyllite | — | — | — | — |
| Siderotil | Fe(SO₄)·5H₂O | Triclinic | — | — |
| Tantalite-(Fe) | Fe²⁺Ta₂O₆ | Orthorhombic | — | — |
| Tetraferriannite | KFe²⁺₃((Fe³⁺,Al)Si₃O₁₀)(OH)₂ | — | — | — |
| Tetraferriphlogopite | KMg₃(Fe³⁺Si₃O₁₀)(OH,F)₂ | — | — | — |
| Wallkilldellite-(Fe) | (Ca,Cu)₄Fe²⁺₆(AsO₄,SiO₄)₄(OH,O)₈ * 18H₂O | Hexagonal | — | — |