Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Category
Mineral, Specifically An Iron Ore
Browse mineral, specifically an iron ore specimens identified by the Rock Identifier community.
River Cobble (Basaltic/Andesitic)
Mafic Igneous Porphyritic Rock
igneous
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Hematite with Magnetite
Iron Oxide (Fe2O3)
mineral
Quartz with Arsenopyrite
Silicon Dioxide (SiO2) with Iron Arsenic Sulfide (FeAsS)
mineral
Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Slag
Anthropogenic Iron Silicate Glass
mineral
Jasper
Jasper (Silicon Dioxide, SiO2 with iron inclusions)
sedimentary
Iron Slag
Anthropogenic pyrometallurgical residue
industrial byproduct
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Quartz (specifically Milky Quartz/Quartzite)
Silicon Dioxide (SiO2)
Mineral
Pallasite Meteorite
Pallasite (Stony-iron meteorite; Fe-Ni alloy with (Mg,Fe)2SiO4 olivine)
Mineral/Extraterrestrial Rock
Ironstone Concretion
Limonitic/Hematitic Concretion
sedimentary
Moss Agate
Silicon Dioxide (SiO2) with inclusions of hornblende, chlorite, or manganese/iron oxides
mineral
Green Quartzite (Aventurine-like)
Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Sandstone (specifically Flagstone)
Arenite (primarily composed of SiO2)
sedimentary
Hematite
Iron(III) oxide (Fe2O3)
mineral
Petrified Wood
Silicified Wood (SiO2)
metamorphic
Slag (Industrial Glass Slag)
Amorphous Silica / Ferro-silicate Slag
mineraloid / anthropogenic
Ferruginous Sandstone (Ironstone Nodules)
Ferruginous Quartz-Arenite (with Goethite/Hematite cement)
sedimentary
Ferruginous Sandstone (Ironstone)
Clastic sedimentary rock (SiO2 with Fe2O3/FeO(OH) cement)
sedimentary
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Citrine Quartz
Crystalline Silicon Dioxide (SiO2) with Ferric Iron impurities
mineral
Pyrite (Iron Pyrite) with Goethite Oxidation
Iron Sulfide (FeS2)
mineral
Peridotite (Dunite)
Peridotite (mostly Olivine: (Mg,Fe)2SiO4)
igneous
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (Goethite)
sedimentary
Hematite (beads)
Hematite (Fe₂O₃)
Mineral
Bauxite Ore
Hydrated aluminum oxides (e.g., Gibbsite Al(OH)3, Boehmite ̲̲̲̲AlOOH, Diaspore ̲̲̲̲AlOOH)
Mineral
Banded Iron Formation
Banded Iron Formation (BIF)
Metamorphic Rock
Slag (Industrial Byproduct)
Artificial silicate/iron byproduct
Mineral description (Anthropogenic material)
Man-made Slag (Industrial Byproduct)
Anthropogenic Glassy Residue
not a natural rock
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Basalt with Magnetite
Crystalline Basalt (Primarily Plagioclase and Pyroxene) with Magnetite (Fe3O4)
igneous
Ironstone Concretion / Goethite Nodules
Ironstone (composed primarily of Goethite FeO(OH) and Limonite)
sedimentary
Barite
Barium Sulfate (BaSO4)
mineral
Carnelian Agate/Jasper blend
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Pyrite
Iron Disulfide (FeS2)
Mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite (on host rock/ore)
Iron Sulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral