Iron (Fe) Minerals sorted by Descending Weight Percent
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| % Fe | Mineral Name | Chemical Formula | MW |
| 38.53 % Fe | Wilkinsonite | Na2Fe++4Fe+++2Si6O20 | 869.56 |
| 38.42 % Fe | Beraunite # | Fe++Fe+++5(PO4)4(OH)5·4(H2O) | 872.07 |
| 38.30 % Fe | Giniite | Fe++Fe+++4(PO4)4(OH)2·2(H2O) | 729.17 |
| 38.15 % Fe | Sodic-ferro-anthophyllite ! | NaFe++7Si8O22(OH)2 | 1,024.60 |
| 38.15 % Fe | Pyrosmalite-(Fe) | (Fe++,Mn)8Si6O15(OH,Cl)10 | 1,053.90 |
| 37.78 % Fe | Franklinite # | (Zn,Mn++,Fe++)(Fe+++,Mn+++)2O4 | 236.54 |
| 37.53 % Fe | Wolfeite # | (Fe++,Mn++)2(PO4)(OH) | 223.22 |
| 37.51 % Fe | Caresite | Fe++4Al2(OH)12CO3·3(H2O) | 595.49 |
| 37.48 % Fe | Dorrite | Ca2Mg2Fe+++4(Al,Fe+++)4Si2O20 | 893.97 |
| 37.38 % Fe | Nezilovite ! | PbZn2(Mn++++,Ti++++)2Fe+++8O19 | 1,195.09 |
| 37.20 % Fe | Zwieselite # | (Fe++,Mn)2(PO4)F | 225.21 |
| 37.14 % Fe | Shadlunite | (Pb,Cd)(Fe,Cu)8S8 | 902.20 |
| 37.14 % Fe | Xenophyllite ! | Na4Fe7(PO4)6 | 1,052.72 |
| 37.09 % Fe | Rudashevskyite ! | (Fe,Zn)S | 91.85 |
| 37.03 % Fe | Heterosite # | Fe+++PO4 | 150.82 |
| 37.03 % Fe | Rodolicoite ! | Fe+++PO4 | 150.82 |
| 36.89 % Fe | Delafossite # | Cu+Fe+++O2 | 151.39 |
| 36.81 % Fe | Ilmenite # | Fe++TiO3 | 151.73 |
| 36.73 % Fe | Kidwellite | Na(Fe+++,Cu)9+x(PO4)6(OH)11·3(H2O) | 1,368.34 |
| 36.40 % Fe | Magnetoplumbite # | Pb(Fe+++,Mn+++)12O19 | 1,181.26 |
| 36.32 % Fe | Pyroxferroite | (Fe++,Mn)7[Si7O21] | 922.61 |
| 36.14 % Fe | Whitmoreite | Fe++Fe+++2(PO4)2(OH)2·4(H2O) | 463.56 |
| 36.05 % Fe | Oxiberaunite * | (Fe+++,Mn+++)Fe+++5(PO4)4O(OH)4·6(H2O) | 890.86 |
| 36.03 % Fe | Tranquillityite | Fe++8(Zr,Y)2Ti3Si3O24 | 1,239.95 |
| 35.79 % Fe | Samaniite | Cu2Fe5Ni2S8 | 780.24 |
| 35.70 % Fe | Nickelphosphide ! | (Ni,Fe)3P | 203.35 |
| 35.51 % Fe | Ekatite ! | (Fe+++,Fe++,Zn)12(OH)6[AsO3]6[AsO3,HOSiO3]2 | 1,761.38 |
| 35.40 % Fe | Triphylite # | LiFe++PO4 | 157.76 |
| 35.37 % Fe | Argentopyrite # | AgFe2S3 | 315.76 |
| 35.37 % Fe | Sternbergite # | AgFe2S3 | 315.76 |
| 35.35 % Fe | Haycockite | Cu4Fe5S8 | 789.95 |
| 35.31 % Fe | Fetiasite | (Fe++,Fe+++,Ti++++)3O2(As+++2O5) | 426.99 |
| 35.27 % Fe | Melliniite ! | (Ni,Fe)4P | 259.69 |
| 35.12 % Fe | Donathite ? | (Fe++,Mg)(Cr,Fe+++)2O4 | 222.61 |
| 35.06 % Fe | Tetraferriannite | K(Fe++,Mg)3(Fe+++,Al)Si3O10(OH)2 | 517.76 |
| 34.93 % Fe | IMA2007-036 | TiFeSi2 | 159.90 |
| 34.92 % Fe | Ammoniojarosite # | (NH4)Fe+++3(SO4)2(OH)6 | 479.75 |
| 34.85 % Fe | Hydroniumjarosite | (H3O)Fe+++3(SO4)2(OH)6 | 480.74 |
| 34.58 % Fe | Cyrilovite # | NaFe+++3(PO4)2(OH)4·2(H2O) | 484.53 |
| 34.57 % Fe | Natrojarosite # | NaFe+++3(SO4)2(OH)6 | 484.70 |
| 34.46 % Fe | Frondelite # | Mn++Fe+++4(PO4)3(OH)5 | 648.28 |
| 34.44 % Fe | Natrodufrenite | Na(Fe+++,Fe++)(Fe+++,Al)5(PO4)4(OH)6·2(H2O) | 786.50 |
| 34.43 % Fe | Molysite # | Fe+++Cl3 | 162.21 |
| 34.30 % Fe | Arsenopyrite # | FeAsS | 162.83 |
| 34.29 % Fe | Haapalaite | 2(Fe,Ni)S·1.6(Mg,Fe++)(OH)2 | 276.87 |
| 33.96 % Fe | Chalcosiderite # | CuFe+++6(PO4)4(OH)8·4(H2O) | 986.63 |
| 33.91 % Fe | Plimerite ! | ZnFe+++4(PO4)3(OH)5 | 658.73 |
| 33.77 % Fe | Clinoferrosilite # | (Fe++,Mg)2Si2O6 | 248.09 |
| 33.73 % Fe | Sodic-ferrogedrite ! | NaFe++6AlSi6Al2O22(OH)2 | 993.53 |
| 33.66 % Fe | Almandine # | Fe++3Al2(SiO4)3 | 497.75 |
| 33.63 % Fe | Richellite # | Ca3Fe+++10(PO4)8(OH)12·n(H2O) | 1,660.58 |
| 33.54 % Fe | Ferrostrunzite | Fe++Fe+++2(PO4)2(OH)2·6(H2O) | 499.59 |
| 33.50 % Fe | Phosphofibrite | KCuFe+++15(PO4)12(OH)12·12(H2O) | 2,500.28 |
| 33.50 % Fe | Pautovite ! | CsFe2S3 | 336.73 |
| 33.49 % Fe | Graeserite ! | (Fe+++,Ti)4Ti3AsO13(OH) | 666.95 |
| 33.45 % Fe | Jarosite # | KFe+++3(SO4)2(OH)6 | 500.81 |
| 33.43 % Fe | Metavivianite | (Fe++3-x,Fe+++x)(PO4)2(OH)x·8-x(H2O), x=0.5 | 501.10 |
| 33.41 % Fe | Allanpringite ! | Fe3(PO4)2(OH)3·5H2O | 498.07 |
| 33.40 % Fe | Vivianite # | Fe++3(PO4)2·8(H2O) | 501.61 |
| 33.37 % Fe | Meurigite-K ! | [K(H2O)2.5][Fe+++8(PO4)6(OH)7(H2O)4] | 1,258.57 |
| 33.33 % Fe | Putoranite | Cu1.1Fe1.2S2 | 201.05 |
| 33.16 % Fe | Deerite | (Fe++,Mn)6(Fe+++,Al)3Si6O20(OH)5 | 1,052.69 |
| 33.16 % Fe | Stanekite ! | Fe+++(Mn,Fe++,Mg)(PO4)O | 218.97 |
| 33.05 % Fe | Ferrohagendorfite * | (Na,Ca)2Fe++(Fe++,Fe+++)2(PO4)3 | 506.98 |
| 32.98 % Fe | Isochalcopyrite ? | Cu8Fe9S16 | 1,524.05 |
| 32.87 % Fe | Szomolnokite # | Fe++SO4·(H2O) | 169.93 |
| 32.86 % Fe | Lawrencite # | (Fe++,Ni)Cl2 | 127.46 |
| 32.67 % Fe | Annite # | KFe++3AlSi3O10(OH,F)2 | 512.88 |
| 32.62 % Fe | Makarochkinite ! | Ca2Fe++4Fe+++TiSi4BeAlO20 | 871.54 |
| 32.56 % Fe | Pentlandite # | (Fe,Ni)9S8 | 771.94 |
| 32.43 % Fe | Ferristrunzite | Fe+++Fe+++2(PO4)2(OH)3·5(H2O) | 516.60 |
| 32.42 % Fe | Erlianite | (Fe++,Mg)4(Fe+++,V+++)2[Si6O15](O,OH)8 | 861.42 |
| 32.35 % Fe | Bravoite ? | (Fe,Ni,Co)S2 | 120.86 |
| 32.22 % Fe | Haggertyite ! | Ba[Fe++6Ti5Mg]O19 | 1,040.10 |
| 32.13 % Fe | Hercynite # | Fe++Al2O4 | 173.81 |
| 32.13 % Fe | Maricite | NaFe++PO4 | 173.81 |
| 32.08 % Fe | Berthierine # | (Fe++,Fe+++,Al,Mg)2-3(Si,Al)2O5(OH)4 | 295.97 |
| 31.96 % Fe | Tavorite # | LiFe+++(PO4)(OH) | 174.77 |
| 31.91 % Fe | IMA2008-056 ! | NaMn++Fe+++5(PO4)4(OH)6·2H2O | 875.12 |
| 31.87 % Fe | Povondraite ! | (Na,K)(Fe+++,Fe++)3(Fe,Mg,Al)6(BO3)3Si6O18(OH)4 | 1,156.50 |
| 31.82 % Fe | Thalfenisite | Tl6(Fe,Ni,Cu)25S26Cl | 3,510.71 |
| 31.74 % Fe | Hisingerite # | Fe+++2Si2O5(OH)4·2(H2O) | 351.92 |
| 31.66 % Fe | Mooihoekite | Cu9Fe9S16 | 1,587.59 |
| 31.63 % Fe | Nikischerite ! | NaFe++6Al3(SO4)2(OH)18(H2O)12 | 1,165.46 |
| 31.57 % Fe | Iwakiite | Mn++(Fe+++,Mn+++)2O4 | 229.99 |
| 31.28 % Fe | Ferrolaueite ! | Fe++Fe+++2(PO4)2(OH)2·8(H2O) | 535.62 |
| 31.25 % Fe | Rusakovite | (Fe+++,Al)5(VO4,PO4)2(OH)9·3(H2O) | 670.16 |
| 31.20 % Fe | Erdite | NaFeS2·2(H2O) | 179.00 |
| 31.14 % Fe | Melonjosephite | CaFe++Fe+++(PO4)2(OH) | 358.72 |
| 31.04 % Fe | Humboldtine # | Fe++(C2O4)·2(H2O) | 179.90 |
| 30.68 % Fe | Chamosite # | (Fe++,Mg,Fe+++)5Al(Si3Al)O10(OH,O)8 | 637.20 |
| 30.67 % Fe | Santabarbaraite ! | Fe+++3(PO4)2(OH)3·5(H2O) | 493.39 |
| 30.63 % Fe | Pitticite # | Hydrous ferric arsenate sulfate (Fe, AsO4, SO4, H2O) | 364.69 |
| 30.58 % Fe | Phosphoferrite # | (Fe++,Mn)3(PO4)2·3(H2O) | 410.85 |
| 30.56 % Fe | Tooeleite | Fe+++6(AsO3)4(SO4)(OH)4·4H2O | 1,388.96 |
| 30.48 % Fe | Minnesotaite # | (Fe++,Mg)3Si4O10(OH)2 | 458.12 |
| 30.45 % Fe | Manganilvaite ! | CaFe++Fe+++(Mn,Fe++)(Si2O7)O(OH) | 407.15 |
| 30.44 % Fe | Kamarizaite ! | Fe+++3(AsO4)2(OH)3·3H2O | 550.45 |
| 30.43 % Fe | Nukundamite | (Cu,Fe)4S4 | 367.05 |
| 30.43 % Fe | Chalcopyrite # | CuFeS2 | 183.53 |
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( Bold - Valid Mineral Name)
(* - Mineral Name is Not IMA Approved)
(! - New Dana Classification Number Has Been Changed or Added)
(? - IMA Discredited Mineral Species Name)
(# - Grandfathered as valid)
