Hematite (Iron Ore)
Hematite (Fe2O3)
Category
Browse mineral, specifically an iron ore specimens identified by the Rock Identifier community.
Hematite (Iron Ore)
Hematite (Fe2O3)
Limonite Concretion (Ironstone)
Limonite / Goethite (FeO(OH)·nH2O)
Goethite (likely as part of Limonite/Ironstone)
Goethite (α-FeOOH)
Limonite (Ironstone Concretion)
Limonite (Hydrous Ferric Oxides mixed with Goethite)
Magnetite
Magnetite (Fe3O4)
Azurite with Malachite and Limonite
Azurite Cu3(CO3)2(OH)2 / Malachite Cu2CO3(OH)2
Dream Amethyst (Chevron Amethyst)
Silicon Dioxide (SiO2) with iron impurities and gamma radiation exposure
Magnetite
Magnetite (Fe3O4)
Hematite
Iron(III) oxide (Fe2O3)
Chert (Red Jasper variant)
Microcrystalline Quartz (SiO2)
Hematite
Ferric oxide (Fe2O3)
Amethyst Lace Agate / Banded Amethyst
Silicon Dioxide (SiO2) with Fe3+ impurities
Basalt with Vesicle/Vug
Basalt (Aphanitic Mafic Igneous Rock)
Sandstone (Ferruginous)
Arenite (Iron-rich)
Hematite
Iron (III) Oxide (Fe2O3)
Green Moss Agate
Agate (Silicon Dioxide - SiO2) with inclusions of hornblende or chlorite
Montana Moss Agate
Chalcedony (SiO2) with Manganese/Iron oxide inclusions
Limonite after Pyrite (Prophecy Stone)
Limonite (FeO(OH)·nH2O) replacing Pyrite (FeS2)
Red Hematite
Iron(III) Oxide (Fe2O3)
Pyrite with Iron Oxides (Fool's Gold in Matrix)
Iron Sulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Limonitic Sandstone (Stained Sandstone)
Clastic Sedimentary Rock with Iron Oxide (Limonite/Goethite) staining
Banded Iron Formation (BIF) / Jasper
Banded Iron Formation (SiO2 with Fe2O3 and Fe3O4)
Banded Iron Formation (BIF)
Banded Iron Formation (predominantly Hematite Fe2O3 and magnetite Fe3O4 alternating with Chert SiO2)
Basalt with Epidote Veins
Mafic Igneous Rock (Basalt)
Stainless Steel (Polished)
Ferrous Alloy containing Iron (Fe), Chromium (Cr), and Carbon (C)
Mahogany Obsidian
Obsidian (SiO2 + Fe2O3)
Moss Agate
Chalcedony (Silicon Dioxide, SiO2) with dendritic inclusions
Hematite
Hematite (Fe2O3)
Banded Iron Formation
Banded Iron Formation (BIF)
Moss Agate
Silicon Dioxide (SiO2) with inclusions of Manganese or Iron oxide
Hematite
Iron(III) oxide (Fe2O3)
Hematite
Iron(III) oxide (Fe2O3)
Specular Hematite (Iron Ore)
Iron(III) oxide (Fe2O3)
Red Sandstone (Hematitic)
Clastic sedimentary rock (SiO2 with Fe2O3 inclusions)
Hematite
Hematite (Fe2O3)
Hematite
Iron(III) oxide (Fe2O3)
Orbicular Jasper (Ocean Jasper)
Silicon Dioxide (SiO2) with iron and magnesium inclusions
Pyrite (on Quartz matrix)
Iron Disulfide (FeS2)
Orange Calcite
Calcium Carbonate (CaCO3)
Iron Slag (Industrial Byproduct)
Anthropogenic Vitrification Product/Ferrous Slag
Olivine (Peridot in gem form)
Magnesium Iron Silicate (Mg,Fe)2SiO4