Rock Identifier

Category

Man Made (Synthetic Rock)

Browse man made (synthetic rock) specimens identified by the Rock Identifier community.

Bauxite (Bauxite (Mixture of Al(OH)3, AlO(OH), and Fe2O3)) — sedimentary

Bauxite

Bauxite (Mixture of Al(OH)3, AlO(OH), and Fe2O3)

Granitic Gneiss (Gneiss (High-grade Metamorphic Rock)) — metamorphic

Granitic Gneiss

Gneiss (High-grade Metamorphic Rock)

Sandstone (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of SiO2)

Granite (Granite (Felsic intrusive igneous rock)) — igneous

Granite

Granite (Felsic intrusive igneous rock)

Sandstone (Ferruginous) (Arenite with Iron oxide staining (SiO2 with Fe2O3)) — sedimentary

Sandstone (Ferruginous)

Arenite with Iron oxide staining (SiO2 with Fe2O3)

Travertine (Calcareous Tufa / Travertine (CaCO3)) — sedimentary

Travertine

Calcareous Tufa / Travertine (CaCO3)

Olivine (Peridotite) ((Mg,Fe)2SiO4 (Magnesium Iron Silicate)) — igneous

Olivine (Peridotite)

(Mg,Fe)2SiO4 (Magnesium Iron Silicate)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz (likely Milky Quartz) (Quartz (SiO₂ - Silicon Dioxide)) — Mineral

Quartz (likely Milky Quartz)

Quartz (SiO₂ - Silicon Dioxide)

Diorite (Diorite (Intermediate plutonic rock)) — igneous

Diorite

Diorite (Intermediate plutonic rock)

Conglomerate (Clastic Sedimentary Rock (Conglomerate)) — sedimentary

Conglomerate

Clastic Sedimentary Rock (Conglomerate)

Quartzite Pebble (Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebble

Quartzite (primarily SiO2)

Granite (Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)) — igneous

Granite

Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)

Quartzite (River Cobble) (Metamorphic Quartz-rich Rock) — metamorphic

Quartzite (River Cobble)

Metamorphic Quartz-rich Rock

Granite (Leucogranite) (Felsic Plutonic Rock (Granite)) — igneous

Granite (Leucogranite)

Felsic Plutonic Rock (Granite)

Green Quartzite (River Stone) (Metamorphic Quartz (SiO2) with inclusions (typically Fuchsite or Chlorite)) — metamorphic

Green Quartzite (River Stone)

Metamorphic Quartz (SiO2) with inclusions (typically Fuchsite or Chlorite)

Unakite (Unakite (metasomatized granite)) — metamorphic

Unakite

Unakite (metasomatized granite)

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

Serpentine

Serpentinite (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Serpentine (Serpentinite) (Antigorite, Lizardite, or Chrysotile; (Mg,Fe)3Si2O5(OH)4) — metamorphic

Serpentine (Serpentinite)

Antigorite, Lizardite, or Chrysotile; (Mg,Fe)3Si2O5(OH)4

Thunderegg (Agate-filled Rhyolitic Nodule (SiO2)) — mineral

Thunderegg

Agate-filled Rhyolitic Nodule (SiO2)

Sandstone (Picture Sandstone) (Sandstone (primarily Quartz with Iron Oxide impurities)) — sedimentary

Sandstone (Picture Sandstone)

Sandstone (primarily Quartz with Iron Oxide impurities)

Serpentinite (Serpentinite (composed primarily of mineral group (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4)) — metamorphic

Serpentinite

Serpentinite (composed primarily of mineral group (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4)

Unakite (Unakite (Epidotized Granite)) — metamorphic

Unakite

Unakite (Epidotized Granite)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Unakite (Unakite (Episyenite composition: Feldspar, Epidote, and Quartz)) — metamorphic

Unakite

Unakite (Episyenite composition: Feldspar, Epidote, and Quartz)

Red Quartzite (Ferruginous Quartz) (Quartzite (SiO2 with Fe2O3 inclusions)) — metamorphic

Red Quartzite (Ferruginous Quartz)

Quartzite (SiO2 with Fe2O3 inclusions)

Mica Schist (Mica Schist) — metamorphic

Mica Schist

Mica Schist

Pumice (Pumice (a highly vesicular extrusive igneous rock)) — igneous

Pumice

Pumice (a highly vesicular extrusive igneous rock)

Andesite (Andesite (contains Plagioclase feldspar, Pyroxene, Hornblende)) — igneous

Andesite

Andesite (contains Plagioclase feldspar, Pyroxene, Hornblende)

Unakite (Unakite Epidosite (Granite with epidote and orthoclase)) — metamorphic

Unakite

Unakite Epidosite (Granite with epidote and orthoclase)

Quartzite with Garnet (Garnetiferous Quartzite (SiO2 + X3Y2(SiO4)3)) — metamorphic

Quartzite with Garnet

Garnetiferous Quartzite (SiO2 + X3Y2(SiO4)3)

Quartzite (River Pebble) (SiO2 (recrystallized Quartz)) — metamorphic

Quartzite (River Pebble)

SiO2 (recrystallized Quartz)

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

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Quartz Druze (Silicon Dioxide (SiO2)) — mineral

Quartz Druze

Silicon Dioxide (SiO2)

Glauconitic Sandstone (Greensand) (Glauconitic Quartz Arenite (containing Glauconite, (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2)) — sedimentary

Glauconitic Sandstone (Greensand)

Glauconitic Quartz Arenite (containing Glauconite, (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Basalt with Desert Varnish (Mafic Volcanic Rock (Fe/Mg rich Silicate)) — igneous

Basalt with Desert Varnish

Mafic Volcanic Rock (Fe/Mg rich Silicate)

Vesicular Basalt (Scoria) (Basalt (Extrusive Igneous Rock)) — igneous

Vesicular Basalt (Scoria)

Basalt (Extrusive Igneous Rock)

Quartz Vein in Host Rock (Silicon Dioxide (SiO2)) — mineral / metamorphic

Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

mineral / metamorphic

Eclogite (Eclogite (Omphacite + Pyrope)) — metamorphic

Eclogite

Eclogite (Omphacite + Pyrope)