Rock Identifier

Category

Antropogenic (Man Made Material)

Browse antropogenic (man made material) specimens identified by the Rock Identifier community.

Anthracite Coal (Anthracite (Carbon-rich metamorphic rock)) — metamorphic

Anthracite Coal

Anthracite (Carbon-rich metamorphic rock)

Shale (Fissile mudrock (composed of clay-sized particles and detrital grains)) — sedimentary

Shale

Fissile mudrock (composed of clay-sized particles and detrital grains)

Blue Kyanite (Kyanite (Al2SiO5)) — mineral

Blue Kyanite

Kyanite (Al2SiO5)

Sandstone (Arenite (SiO2 based with various mineral cements)) — sedimentary

Sandstone

Arenite (SiO2 based with various mineral cements)

Chert (often called Flint or Jasper locally) (Chert (Microcrystalline Quartz, Formula: SiO2)) — sedimentary

Chert (often called Flint or Jasper locally)

Chert (Microcrystalline Quartz, Formula: SiO2)

Mica Schist (Foliated Metamorphic Rock (rich in Muscovite or Biotite)) — metamorphic

Mica Schist

Foliated Metamorphic Rock (rich in Muscovite or Biotite)

Red Sandstone (Arenite (primarily composed of SiO2 with Fe2O3 cement)) — sedimentary

Red Sandstone

Arenite (primarily composed of SiO2 with Fe2O3 cement)

Granite with Epidote (Granite, containing quartz, feldspar, and epidote) — Igneous

Granite with Epidote

Granite, containing quartz, feldspar, and epidote

Jasper (Silicon Dioxide (SiO2) with impurities (mostly Iron Oxides)) — Mineral

Jasper

Silicon Dioxide (SiO2) with impurities (mostly Iron Oxides)

Turquoise (Hydrated phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

Hydrated phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O

Sodalite (Sodalite (Na8(Al6Si6O24)Cl2)) — mineral

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Serpentine (Serpentine group ((Mg, Fe, Ni, Al, Zn, Mn)3(Si, Al, Fe)2O5(OH)4)) — metamorphic

Serpentine

Serpentine group ((Mg, Fe, Ni, Al, Zn, Mn)3(Si, Al, Fe)2O5(OH)4)

Lapis Lazuli (Low Grade) (Lazurite-rich metamorphic rock ((Na,Ca)8(AlSiO4)6(SO4,S,Cl,OH)2)) — metamorphic

Lapis Lazuli (Low Grade)

Lazurite-rich metamorphic rock ((Na,Ca)8(AlSiO4)6(SO4,S,Cl,OH)2)

Lapis Lazuli (Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite component)) — metamorphic

Lapis Lazuli

Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite component)

Sandstone (Red Flagstone) (Clastic sedimentary rock (primarily Quartz - SiO2)) — sedimentary

Sandstone (Red Flagstone)

Clastic sedimentary rock (primarily Quartz - SiO2)

Rose Quartz (Silicon dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Basalt (Extrusive mafic rock (Basalt)) — igneous

Basalt

Extrusive mafic rock (Basalt)

Pink Quartzite (Quartzite (primarily SiO2)) — metamorphic

Pink Quartzite

Quartzite (primarily SiO2)

Lepidolite (in Quartz Matrix) (Lepidolite [K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2]) — mineral

Lepidolite (in Quartz Matrix)

Lepidolite [K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2]

Quartzite (Quartzite (composed primarily of Quartz, SiO2)) — metamorphic

Quartzite

Quartzite (composed primarily of Quartz, SiO2)

Ironstone (likely Limonite or Goethite) (Ferruginous sedimentary rock (FeO(OH)·nH2O)) — sedimentary

Ironstone (likely Limonite or Goethite)

Ferruginous sedimentary rock (FeO(OH)·nH2O)

Olivine (Peridot) (Magnesium Iron Silicate (Mg,Fe)2SiO4) — mineral

Olivine (Peridot)

Magnesium Iron Silicate (Mg,Fe)2SiO4

Ferruginous Sandstone (Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)) — sedimentary

Ferruginous Sandstone

Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)

Diorite (Diorite (Intermediate intrusive igneous rock)) — igneous

Diorite

Diorite (Intermediate intrusive igneous rock)

Jasper Conglomerate (Puddingstone) (Jasper Conglomerate (Siliceous Sedimentary Rock)) — sedimentary

Jasper Conglomerate (Puddingstone)

Jasper Conglomerate (Siliceous Sedimentary Rock)

Ferruginous Sandstone (Ironstone Nodules) (Ferruginous Sandstone with Limonite/Goethite coating (Fe2O3·H2O)) — sedimentary

Ferruginous Sandstone (Ironstone Nodules)

Ferruginous Sandstone with Limonite/Goethite coating (Fe2O3·H2O)

Flesh-toned Siltstone (Siltstone (composed of microscopic Quartz and Feldspar grains)) — sedimentary

Flesh-toned Siltstone

Siltstone (composed of microscopic Quartz and Feldspar grains)

Chert (specifically Flint or Jasper variant) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Flint or Jasper variant)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Chert (Nodule) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Nodule)

Silicon Dioxide (SiO2)

Rhodonite (Rhodonite (MnSiO3)) — mineral

Rhodonite

Rhodonite (MnSiO3)

Chert (White Variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (White Variety)

Silicon Dioxide (SiO2)

Ferruginous Quartzite (Red Chert/Jasper-like) (Metamorphosed Quartzite with Hematite inclusions (SiO2 + Fe2O3)) — metamorphic

Ferruginous Quartzite (Red Chert/Jasper-like)

Metamorphosed Quartzite with Hematite inclusions (SiO2 + Fe2O3)

Green Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Green Chert

Microcrystalline Quartz (SiO2)

Sandstone (Arenite (SiO2 based with various mineral cements)) — sedimentary

Sandstone

Arenite (SiO2 based with various mineral cements)

Quartz (Iron-stained) (Silicon Dioxide (SiO2) with Hematite/Limonite impurities) — mineral

Quartz (Iron-stained)

Silicon Dioxide (SiO2) with Hematite/Limonite impurities

Red Sandstone (Arenite (primarily Quartz with Hematite cement)) — sedimentary

Red Sandstone

Arenite (primarily Quartz with Hematite cement)

Conglomerate (Conglomerate (clastic sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (clastic sedimentary rock)

Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

Soapstone (Talc Schist) (Steatite) — metamorphic

Soapstone (Talc Schist)

Steatite

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite