Hematite
Iron (III) Oxide (Fe2O3)
mineral
Category
Mineral (Iron Ore)
Browse mineral (iron ore) specimens identified by the Rock Identifier community.
Learn about Mineral (Iron Ore) in the encyclopedia
View all →
Hematite (Nodular or Botryoidal)
Iron(III) oxide (Fe2O3)
mineral
Magnetite (likely in Hematite or Ironstone)
Magnetite (Fe3O4)
mineral
Limonite Concretion
Limonite (Hydrated iron(III) oxide-hydroxides, FeO(OH)·nH2O)
sedimentary
Magnetite (Lodestone variant potential)
Magnetite (Fe3O4)
mineral
Magnetite
Iron(II,III) oxide (Fe3O4)
mineral
Limonite/Goethite Nodule
Iron Oxyhydroxide (primarily FeO(OH)·nH2O)
mineral
Limonite (Iron Stone Concretion)
Limonite (Hydrous Iron Oxide) - FeO(OH)·nH2O
mineral
Hematite
Hematite (Fe2O3)
mineral
Concretion
Sedimentary Concretion (e.g., Siderite or Ironstone)
sedimentary
Bauxite
Bauxite (mainly Al(OH)3, AlO(OH))
sedimentary
Ironstone (Limonitic Sandstone)
Ferruginous Sandstone (rich in Limonite: FeO(OH)·nH2O)
sedimentary
Hematite
Iron(III) oxide (Fe2O3)
mineral
Hematite (Iron Ore)
Iron(III) oxide (Fe2O3)
mineral
Ironstone (with possible Hematite/Limonite coating)
Ironstone (Fe-rich sedimentary rock)
sedimentary
Likely iron-rich slag or weathered ironstone
Hematite–goethite-rich material (Fe₂O₃/FeO(OH)); possibly industrial iron slag
mineral
Red Jasper (Oolitic Hematite)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) impurities
mineral
Sandstone Concretion
Ferruginous Sandstone Concretion (Primarily SiO2 with Iron Oxide cement)
sedimentary
Limonite (Gozzany Iron)
Limonite (FeO(OH)·nH2O)
mineral
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
mineral
Yellow Ochre / Limonite
FeO(OH)·nH2O (Hydrated Iron Oxide Mix)
mineral
Magnetite (potentially Lodestone)
Magnetite (Iron(II,III) oxide, Fe3O4)
mineral
Pyrite (Limonite Pseudo-morph after Pyrite)
Iron sulfide (FeS2) transitioning to Iron oxide-hydroxide (FeO(OH)·nH2O)
mineral
Hematite
Hematite (Iron(III) oxide, Fe2O3)
mineral
Hematite
Iron Oxide (Fe2O3)
mineral
Hematite
Iron Oxide (Fe2O3)
mineral
Limonite (Ironstone Concretion)
Limonite (FeO(OH)·nH2O)
sedimentary
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
mineral
Hematite
Iron oxide (Fe2O3)
mineral
Likely weathered brown rock or iron-rich mineral specimen
Indeterminate from image; possible limonite/goethite-rich material
mineral
Iron-rich breccia (hematite–goethite rock)
Hematite (Fe₂O₃) and goethite (FeO(OH)) ironstone, likely ferruginous breccia
sedimentary
Banded Iron Formation (BIF)
Banded Iron Formation
sedimentary
Limonite Concretion
Limonite (Hydrated iron oxide) FeO(OH)·nH2O
sedimentary
Ironstone Concretion (Pot Stone)
Siderite or Limonite Concretion (FeCO3 or FeO(OH)·nH2O)
sedimentary
Yellow Ocher (Iron-rich Silt/Clay)
Goethite-rich Limonite (FeO(OH)qnH2O)
sedimentary
Hematite
Iron(III) oxide (Fe2O3)
mineral
Chalcedony on Ironstone
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3/FeOOH)
sedimentary
Slag
Anthropogenic glassy silicate
Mineral-like byproduct
Iron-rich mineral fragment, possibly limonite/goethite
Limonite (hydrated iron oxides; commonly goethite, FeO(OH), with hematite)
mineral
Weathered iron-rich rock, possibly meteorite
Uncertain; likely goethite/hematite-rich material, with meteorite possibility
mineral
Ironstone Concretion / Limonite Node
Goethite and Limonite (FeO(OH) nH2O)
sedimentary
Magnetite / Hematite (Iron Ore Pebble)
Fe3O4 (Magnetite) / Fe2O3 (Hematite)
mineral