Rock Identifier

Category

Not A Natural Rock (Man Made Composite)

Browse not a natural rock (man made composite) specimens identified by the Rock Identifier community.

Learn about Not A Natural Rock (Man Made Composite) in the encyclopedia

Asphalt Rock

Rock Gypsum

Talc-carbonate Rock

Talc-carbonate Rock

Opalite

Chalk

Goldstone

Anorthosite

Albitite

Dunite

Gondite

Limestone

Coquina

Sandstone (Red/Brown Variety) (Arenite (composed primarily of SiO2 with Fe2O3 iron oxide inclusions)) — sedimentary

Sandstone (Red/Brown Variety)

Arenite (composed primarily of SiO2 with Fe2O3 iron oxide inclusions)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Sandstone (Quartzose) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartzose)

Arenite (primarily SiO2)

Heart-shaped Pebble (Limestone/Quartz) (Calcium Carbonate (CaCO3) / Silicon Dioxide (SiO2)) — sedimentary

Heart-shaped Pebble (Limestone/Quartz)

Calcium Carbonate (CaCO3) / Silicon Dioxide (SiO2)

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2)) — metamorphic

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Dyed Agate / Quartz (Tumbled) (Silicon Dioxide (SiO2) with artificial dye) — mineral

Dyed Agate / Quartz (Tumbled)

Silicon Dioxide (SiO2) with artificial dye

Tumbled Granite (Granite (composed of Quartz, Feldspar, and Mica)) — igneous

Tumbled Granite

Granite (composed of Quartz, Feldspar, and Mica)

Sandstone (Ferruginous) (Arenite (primarily SiO2 with Fe2O3 staining)) — sedimentary

Sandstone (Ferruginous)

Arenite (primarily SiO2 with Fe2O3 staining)

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

Granite

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

Granite (Phaneritic plutonic rock (Quartz, Feldspar, Mica)) — igneous

Granite

Phaneritic plutonic rock (Quartz, Feldspar, Mica)

Vesicular Basalt (Lava Rock) (Basalt) — igneous

Vesicular Basalt (Lava Rock)

Basalt

Pink Dyed Agate (Silicon Dioxide (SiO2) - Variety Agate) — mineral

Pink Dyed Agate

Silicon Dioxide (SiO2) - Variety Agate

Flint (Silicon dioxide (SiO2)) — sedimentary

Flint

Silicon dioxide (SiO2)

Basalt (Basalt (containing plagioclase, pyroxene, and olivine)) — igneous

Basalt

Basalt (containing plagioclase, pyroxene, and olivine)

Green Quartz / Prasiolite (Silicon Dioxide (SiO2)) — mineral

Green Quartz / Prasiolite

Silicon Dioxide (SiO2)

Sandstone (Quartzose) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartzose)

Arenite (primarily SiO2)

Weathered iron-rich rock, likely limonite/goethite-bearing laterite (Limonite–goethite aggregate, commonly approximated as hydrated iron oxides (FeO(OH)·nH₂O)) — mineral

Weathered iron-rich rock, likely limonite/goethite-bearing laterite

Limonite–goethite aggregate, commonly approximated as hydrated iron oxides (FeO(OH)·nH₂O)

Pink Tumbled Agate (Silicon Dioxide (SiO2) with dye) — mineral

Pink Tumbled Agate

Silicon Dioxide (SiO2) with dye

Unakite (Altered Granite (Epidotized Granite)) — metamorphic

Unakite

Altered Granite (Epidotized Granite)

Sandstone / Chert Pebble (Silicon Dioxide / Sedimentary Rock (SiO2)) — sedimentary

Sandstone / Chert Pebble

Silicon Dioxide / Sedimentary Rock (SiO2)

Sandstone (Lithic Wacke) (Clastic sedimentary rock (primarily SiO2 with rock fragments)) — sedimentary

Sandstone (Lithic Wacke)

Clastic sedimentary rock (primarily SiO2 with rock fragments)

Sandstone (Sedimentary quartz arenite) — sedimentary

Sandstone

Sedimentary quartz arenite

Granite (Intrusive igneous rock (Acidic)) — igneous

Granite

Intrusive igneous rock (Acidic)

Satin Spar (Gypsum) (Gypsum (Satin Spar variety) - CaSO4·2H2O) — mineral

Satin Spar (Gypsum)

Gypsum (Satin Spar variety) - CaSO4·2H2O

Shale (Shale (composition varies: primarily clay minerals and quartz)) — sedimentary

Shale

Shale (composition varies: primarily clay minerals and quartz)

Sandstone (likely Quartzose type) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (likely Quartzose type)

Clastic sedimentary rock (primarily SiO2)

Sandstone pebble (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone pebble

Clastic sedimentary rock (primarily SiO2)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Granite (Phaneritic Felsic Intrusive Igneous Rock) — igneous

Granite

Phaneritic Felsic Intrusive Igneous Rock

Chert (Jasper/Flint variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Chert (Microcrystalline quartz (SiO2)) — sedimentary

Chert

Microcrystalline quartz (SiO2)

Granite (Phaneritic Igneous Rock (composed mostly of Quartz, Feldspar, and Mica)) — igneous

Granite

Phaneritic Igneous Rock (composed mostly of Quartz, Feldspar, and Mica)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Basalt (Greenstone/Water-worn Pebble) (Basalt (containing Chlorite/Epidote)) — igneous

Basalt (Greenstone/Water-worn Pebble)

Basalt (containing Chlorite/Epidote)

Hoodoo (Limestone / Siltstone Formation) (Claron Formation (Sedimentary Rock - Limestone, Mudstone, Dolomite)) — sedimentary

Hoodoo (Limestone / Siltstone Formation)

Claron Formation (Sedimentary Rock - Limestone, Mudstone, Dolomite)

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite (Granite (a phaneritic intrusive igneous rock)) — igneous

Granite

Granite (a phaneritic intrusive igneous rock)

Granite (Intrusive Felsic Igneous Rock) — igneous

Granite

Intrusive Felsic Igneous Rock

Sandstone (Arenite (SiO2 based typically)) — sedimentary

Sandstone

Arenite (SiO2 based typically)

Sandstone Pebble (Arenite (SiO2 primarily)) — sedimentary

Sandstone Pebble

Arenite (SiO2 primarily)

Coquina / Fossiliferous Limestone (Calcareous bioclastic sedimentary rock (CaCO3)) — sedimentary

Coquina / Fossiliferous Limestone

Calcareous bioclastic sedimentary rock (CaCO3)

Sandstone (Quartzose Sandstone) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartzose Sandstone)

Arenite (primarily SiO2)