Moqui Marble (Concretion)
Iron Oxide Concretion (Hematite-cemented Sandstone)
Category
Browse anthropic metallic specimen specimens identified by the Rock Identifier community.
Moqui Marble (Concretion)
Iron Oxide Concretion (Hematite-cemented Sandstone)
Indigo Gabbro (also known as Mystic Merlinite)
Gabbro (composed of Plagioclase Feldspar, Pyroxene, and minor Magnetite/Ilmenite)
Basalt
Basalt (Mafic igneous rock)
Hematite
Iron(III) oxide (Fe2O3)
Scoria (Vesicular Basalt)
Scoria (Extrusive Mafic Igneous Rock)
Schist
Mica Schist
Schist with Quartz
Mica Schist (contains Muscovite/Biotite and Quartz SiO2)
Lapis Lazuli
Lapis Lazuli (Rock containing Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Basalt with Iron Oxidation
Aphanitic Mafic Igneous Rock (composed primarily of Plagioclase and Pyroxene)
Basalt
Mafic extrusive igneous rock
Schist
Mica Schist (Variable chemistry, often rich in muscovite and biotite)
Malachite
Copper carbonate hydroxide [Cu2CO3(OH)2]
Green Aventurine
Silicon Dioxide with Fuchsite (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
Bituminous Coal
Organic-rich sedimentary rock (Complex hydrocarbons)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Schist (Kyanite Schist)
Kyanite-Mica Schist (primarily Al2SiO5, KAl2(AlSi3O10)(OH)2, and SiO2)
Black Tourmaline (Schorl)
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Hematite
Hematite (Fe2O3)
Schist
Mica Schist (primarily Muscovite or Biotite sheet silicates)
Chondrite Meteorite
Ordinary Chondrite (L or H Type)
Anthracite Coal
Anthracite (Carbon-rich metamorphic coal)
Lapis Lazuli
Lapis Lazuli (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2
Amygdaloidal Basalt
Amygdaloidal Basalt (Ca-rich Plagioclase, Pyroxene, and Olivine)
Basalt
Basalt (Mafic Extrusive Igneous Rock)
Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)
Basalt
Basalt (Fine-grained extrusive igneous rock)
Basalt
Basalt (Aphanitic-fine grained mafic igneous rock)
Fluorite
Calcium fluoride (CaF2)
Schist
Mica Schist (Metamorphic Rock)
Banded Iron Formation (BIF) / Iron Ore
Banded Iron Formation (composed primarily of Hematite (Fe2O3) and Magnetite (Fe3O4) with Quartz/Chert)
Banded Schist
Mica Schist
Basalt
Extrusive mafic igneous rock
Pyrite
Iron Sulfide (FeS2)
Iron Slag
Ferrous Slag (Silicate/Oxide mixture)
Schist
Mica Schist
Schist
Mica Schist (primarily Muscovite and Biotite)
Schist with Quartz/Mica
Mica Schist (primarily Muscovite and Quartz)
Chondrite Meteorite
Undifferentiated Chondrite
Chondrite Meteorite
Stone Meteorite (Chondrite)
Anthracite Coal
Anthracite (high-rank coal / Carbon)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Mica Schist
Schist (Muscovite/Biotite Schist)