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Approved minerals
4,194 minerals
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Ferriprehnite | — | Orthorhombic | — | — |
| Ferripyrophyllite | Fe³⁺Si₂O₅(OH) | — | — | — |
| Ferrirockbridgeite | (Fe³⁺₀.₆₇☐₀.₃₃)₂(Fe³⁺)₃(PO₄)₃(OH)₄(H₂O) | Orthorhombic | — | — |
| Ferrisanidine | K[Fe3 Si3O8] | Monoclinic | — | 2.72 g/cm³ |
| Ferrisepiolite | (Fe³⁺,Fe²⁺,Mg)₄[(Si,Fe³⁺)₆O₁₅](O,OH)₂·6H₂O | Orthorhombic | 2.5 | — |
| Ferristrunzite | Fe³⁺Fe³⁺₂(PO₄)₂(OH)₃·5H₂O | — | — | — |
| Ferrisurite | (Pb,Ca)₂.₄Fe³⁺₂(Si₄O₁₀)(CO₃)₁.₇(OH)₃·nH₂O | — | — | — |
| Ferrivauxite | Fe³⁺Al₂(PO₄)₂(OH)₃·5H₂O | Triclinic | — | — |
| Ferro-bosiite | NaFe³⁺₃(Al₄Fe²⁺₂)(Si₆O₁₈)(BO₃)₃(OH)₃O | — | — | — |
| Ferro-ferri-holmquistite | ☐Li₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂ | Orthorhombic | — | — |
| Ferro-ferri-hornblende | ☐Ca₂(Fe²⁺₄Fe³⁺)(Si₇Al)O₂₂(OH)₂ | Monoclinic | — | — |
| Ferro-ferri-katophorite | Na(NaCa)(Fe²⁺₄Fe³⁺)(Si₇Al)O₂₂(OH)₂ | Monoclinic | — | — |
| Ferro-ferri-nybøite | NaNa₂(Fe²⁺₃Fe³⁺₂)(Si₇Al)O₂₂(OH)₂ | Monoclinic | — | — |
| Ferro-fluoro-edenite | — | Monoclinic | — | — |
| Ferro-papikeite | — | Orthorhombic | — | — |
| Ferro-pedrizite | NaLi₂(Fe²⁺₂Al₂Li)Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Ferro-tschermakite | ☐Ca₂(Fe²⁺₃Al₂)(Si₆Al₂)O₂₂(OH)₂ | Monoclinic | — | — |
| Ferroberaunite | Fe²⁺Fe³⁺₅(PO₄)₄(OH)₅(H₂O)₄·2H₂O | Monoclinic | — | — |
| Ferrobobfergusonite | Na₂Fe²⁺₅Fe³⁺Al(PO₄)₆ | Monoclinic | — | — |
| Ferroceladonite | K(Fe²⁺,Mg)(Fe³⁺,Al)(Si₄O₁₀)(OH)₂ | — | — | — |
| Ferrochiavennite | Ca₁₋₂Fe[(Si,Al,Be)₅Be₂O₁₃(OH)₂]·2H₂O | Monoclinic | 3.0 | — |
| Ferrodimolybdenite | FeMo₂S₄ | Monoclinic | — | — |
| Ferroefremovite | — | Cubic | — | — |
| Ferroericssonite | BaFe²⁺₂Fe³⁺(Si₂O₇)O(OH) | Monoclinic | 4.5 | — |
| Ferrofettelite | — | Monoclinic | — | — |
| Ferrohexahydrite | Fe²⁺(SO₄)(H₂O)₆ | Monoclinic | — | — |
| Ferrohögbomite-2N2S | [(Fe²⁺,Mg,Zn,Al)₃(Al,Ti,Fe³⁺)₈O₁₅(OH)]₂ | Hexagonal | — | — |
| Ferroindialite | (Fe²⁺,Mg)₂Al₄Si₅O₁₈ | Hexagonal | — | — |
| Ferroinnelite | Ba₄Ti₂Na(NaFe²⁺)Ti(Si₂O₇)₂[(SO₄)(PO₄)]O₂[O(OH)] | Triclinic | — | — |
| Ferrokentbrooksite | Na₁₅Ca₆(Fe,Mn)₃Zr₃NbSi₂₅O₇₃(O,OH,H₂O)₃Cl₂ | Trigonal | — | — |
| Ferrokinoshitalite | (Ba,K)(Fe²⁺,Mg)₃(Al₂Si₂O₁₀)(OH,F)₂ | — | — | — |
| Ferrolaueite | Fe²⁺Fe³⁺₂(PO₄)₂(OH)₂·8H₂O | — | — | — |
| Ferromerrillite | Ca₉NaFe(PO₄)₇ | Trigonal | — | — |
| Ferronickelplatinum | (Ni,Fe)Pt | Tetragonal | — | — |
| Ferronordite-(Ce) | Na₃SrCeFe²⁺Si₆O₁₇ | — | — | — |
| Ferronordite-(La) | Na₃Sr(La,Ce)FeSi₆O₁₇ | — | — | — |
| Ferropseudobrookite | Fe²⁺Ti⁴⁺₂O₅ | Orthorhombic | — | — |
| Ferrorhodonite | CaMn₃Fe(Si₅O₁₅) | Triclinic | — | — |
| Ferrorockbridgeite | (Fe²⁺,Mn²⁺)₂(Fe³⁺)₃(PO₄)₃(OH)₄(H₂O) | Orthorhombic | — | — |
| Ferrorosemaryite | ☐ NaFe²⁺Fe³⁺Al(PO₄)₃ | — | — | — |
| Ferrosaponite | Ca₀.₃(Fe²⁺,Mg,Fe³⁺)₃((Si,Al)₄O₁₀)(OH)₂·4H₂O | — | — | — |
| Ferroskutterudite | (Fe,Co)As₃ | Cubic | — | — |
| Ferrostalderite | CuFe₂TlAs₂S₆ | Tetragonal | — | — |
| Ferrostrunzite | Fe²⁺Fe³⁺₂(PO₄)₂(OH)₂·6H₂O | — | — | — |
| Ferrotaaffeite-2N'2S | (Fe²⁺,Mg,Zn)₃Al₈BeO₁₆ | Hexagonal | — | — |
| Ferrotitanowodginite | Fe²⁺TiTa₂O₈ | — | — | — |
| Ferrotochilinite | [FeS]·≈0.85[Fe²⁺(OH)₂] | Monoclinic | — | — |
| Ferrotorryweiserite | Rh₅Fe₁₀S₁₆ | Trigonal | — | — |
| Ferrotychite | Na₆Fe²⁺₂(CO₃)₄(SO₄) | Cubic | — | — |
| Ferrovalleriite | 2[(Fe,Cu)S]·1.53[(Fe,Al,Mg)(OH)₂] | Trigonal | — | — |
| Ferrovorontsovite | (Fe₅Cu)∑₆TlAs₄S₁₂ | Cubic | — | — |
| Ferrowodginite | Fe²⁺Sn⁴⁺Ta₂O₈ | — | — | — |
| Ferrowyllieite | (Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO₄)₃ | — | — | — |
| Ferroåkermanite | Ca₂FeSi₂O₇ | Tetragonal | — | — |
| Feruvite | Ca(Fe²⁺)₃MgAl₅(Si₆O₁₈)(BO₃)₃(OH)₃(OH) | Trigonal | 7.0 | — |
| Fetiasite | (Fe³⁺,Fe²⁺,Ti)₃(As₂O₅)O₂ | — | — | — |
| Fettelite | [Ag₆As₂S₇][Ag₁₀HgAs₂S₈] | Monoclinic | — | — |
| Feynmanite | Na(UO₂)(SO₄)(OH)·3.5H₂O | Monoclinic | — | — |
| Fianelite | Mn²⁺₂((V,As)₂O₇) * 2H₂O | Monoclinic | — | — |
| Fiemmeite | Cu₂(C₂O₄)(OH)₂·2H₂O | Monoclinic | — | — |
| Filatovite | K(Al,Zn)₂(As,Si)₂O₈ | Monoclinic | — | — |
| Finchite | Sr(UO₂)₂(V₂O₈)*₅H₂O | Orthorhombic | — | — |
| Fingerite | — | Triclinic | — | — |
| Fischesserite | Ag₃AuSe₂ | Cubic | — | 8.92 g/cm³ |
| Fivegite | K₄Ca₂[AlSi₇O₁₇(O₂-xOHx)][(H₂O)₂-xOHx]Cl | Orthorhombic | — | — |
| Flaggite | — | Triclinic | — | — |
| Flamite | (Ca,Na,K)₂(Si,P)O₄ | Hexagonal | — | — |
| Flatimerite | [Al₁₃(OH)₂₄(H₂O)₂₄][V⁵⁺₉V⁴⁺O₂₈]·[(SO₄)₄(H₂O)₂₄] | Triclinic | — | — |
| Fleetite | — | Cubic | — | — |
| Fleischerite | Pb₃Ge(SO₄)₂(OH)₆·3H₂O | Hexagonal | — | — |
| Fleisstalite | FeSO₃·3H₂O | Orthorhombic | — | — |
| Fletcherite | Cu(Ni,Co)₂S₄ | Cubic | — | — |
| Flinteite | K₂ZnCl₄ | Orthorhombic | — | 2.23 g/cm³ |
| Florencite-(Nd) | NdAl₃(PO₄)₂(OH)₆ | — | — | — |
| Florencite-(Sm) | (Sm,Nd)Al₃(PO₄)₂(OH)₆ | Trigonal | — | — |
| Florenskyite | FeTiP | Orthorhombic | — | 6.10 g/cm³ |
| Florensovite | Cu(Cr₁.₅Sb₀.₅)S₄ | Cubic | 5.0 | — |
| Fluocerite-(Ce) | CeF₃ | Hexagonal | — | 6.24 g/cm³ |
| Fluor-dravite | NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃F | Trigonal | 7.0 | — |
| Fluor-elbaite | Na(Li₁.₅Al₁.₅)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃F | Trigonal | 7.5 | — |