Hematite
Iron(III) oxide (Fe2O3)
Category
Browse anthropic metallic specimen specimens identified by the Rock Identifier community.
Hematite
Iron(III) oxide (Fe2O3)
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Pyrite
Iron Sulfide (FeS2)
Native Copper
Native Copper (Cu)
Anthracite Coal
Anthracite (high-rank coal)
Basalt
Basalt (Mafic volcanic rock)
Basalt with Plagioclase Phenocrysts (Porphyritic Basalt)
Porphyritic Basalt (primarily Plagioclase Feldspar, Pyroxene, and Olivine)
Pyrite (on a metal substrate)
Iron Sulfide (FeS2)
Chondrite Meteorite
Stony Meteorite (L, H, or LL Chondrite)
Peacock Ore
Bornite (Cu5FeS4)
Iron Meteorite
Iron-nickel alloy (primarily kamacite and taenite)
Bornite
Bornite (Cu5FeS4)
Basalt
Mafic Igneous Rock (composed primarily of Plagioclase and Pyroxene)
Schist (Garnet-Mica Schist)
Garnet-Mica Schist
Coal (specifically Bituminous or Anthracite)
Organic sedimentary rock; primarily Carbon (C) with varying H, S, O, N
Cinnabar
Mercury(II) sulfide (HgS)
Fluorite (Rainbow/Purple Fluorite)
Calcium Fluoride (CaF2)
Basalt
Extrusive Mafic Igneous Rock (composed primarily of Plagioclase, Pyroxene, and Olivine)
Basalt
Basalt
Banded Iron Formation (BIF) / Tiger Iron
Ferruginous Chert (primarily Quartz [SiO2] and Hematite/Magnetite [Fe2O3/Fe3O4])
Slag (Industrial Glass)
Artificial Vitreous Silicate
Pyrite
Iron Sulfide (FeS2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Slate with Pyrite Inclusions
Foliated Metamorphic Rock (with Iron Sulfide FE-S2)
Fluorite (translucent octahedral crystal)
Calcium fluoride (CaF2)
Native Copper
Native Copper (Cu)
Quartzite
Quartzite (primarily SiO2)
Basalt (Vesicular)
Extrusive Mafic Igneous Rock
Anthracite Coal
Anthracite (Carbon-rich metamorphic rock)
Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 - Muscovite component)
Barite
Barium Sulfate (BaSO4)
Limonite (Ironstone Concretion)
Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)
Basalt
Basalt (Mafic volcanic rock)
Limonite (Iron Ore)
Goethite and related iron hydroxides (FeO(OH)·nH2O)
Moqui Marble (Concretion)
Iron Oxide Concretion (Hematite/Goethite)
Galena
Lead(II) sulfide (PbS)
Quartz with Iron Staining
Silicon Dioxide (SiO2) with iron oxide impurities
Mica Schist
Schist (Biotite/Muscovite rich)
Schist
Mica Schist
Mica Schist
Mica Schist (primarily Muscovite and Biotite KAl2(AlSi3O10)(OH)2)
Schist (specifically Chlorite/Greenschist)
Chlorite Schist