Rock Identifier

Category

Antropogenic Rock (Man Made)

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

Chert (Flint) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline quartz (SiO2)

Petoskey Stone (Hexagonaria percarinata (Fossilized Coral)) — sedimentary

Petoskey Stone

Hexagonaria percarinata (Fossilized Coral)

Granodiorite (Granodiorite) — igneous

Granodiorite

Granodiorite

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

Granite

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

Granite (Phaneritic Plutonic Felsic Rock (SiO2, KAlSi3O8, NaAlSi3O8, CaAl2Si2O8)) — igneous

Granite

Phaneritic Plutonic Felsic Rock (SiO2, KAlSi3O8, NaAlSi3O8, CaAl2Si2O8)

Sandstone (likely Quartzose Sandstone) (Arenite) — sedimentary

Sandstone (likely Quartzose Sandstone)

Arenite

Coquina (Fossiliferous Limestone) (Biogenic Limestone (Calcium Carbonate, CaCO3)) — sedimentary

Coquina (Fossiliferous Limestone)

Biogenic Limestone (Calcium Carbonate, CaCO3)

Granodiorite (Granodiorite (Quartz + Plagioclase + Alkali Feldspar + Biotite/Hornblende)) — igneous

Granodiorite

Granodiorite (Quartz + Plagioclase + Alkali Feldspar + Biotite/Hornblende)

Man-made Jewelry Charm (Enameled Metal) (Not a natural mineral; composed of base metal alloy (likely zinc or brass) and epoxy resin/enamel.) — Synthetic / Manufactured Artifact

Man-made Jewelry Charm (Enameled Metal)

Not a natural mineral; composed of base metal alloy (likely zinc or brass) and epoxy resin/enamel.

Synthetic / Manufactured Artifact

Cullet Glass (Man-made Glass Slag) (Amorphous Silica (SiO2) with chemical additives) — Mineraloid

Cullet Glass (Man-made Glass Slag)

Amorphous Silica (SiO2) with chemical additives

Coquina (Bioclastic Limestone (Calcium Carbonate, CaCO3)) — sedimentary

Coquina

Bioclastic Limestone (Calcium Carbonate, CaCO3)

Man-made Green Quartz (Lab-grown or Treated) (Silicon Dioxide (SiO2) with artificial coloration) — mineral

Man-made Green Quartz (Lab-grown or Treated)

Silicon Dioxide (SiO2) with artificial coloration

Granite (Phaneritic Felsic Intrusive Igneous Rock) — igneous

Granite

Phaneritic Felsic Intrusive Igneous Rock

Synthetic Faux Fur Fursuit (Polyacrylonitrile / Polyester (Synthetic Textile)) — not a rock (synthetic material/costume)

Synthetic Faux Fur Fursuit

Polyacrylonitrile / Polyester (Synthetic Textile)

not a rock (synthetic material/costume)

Granite (Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)) — igneous

Granite

Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)

Chert (or Flint) (Chert (cryptocrystalline quartz), SiO2) — Sedimentary

Chert (or Flint)

Chert (cryptocrystalline quartz), SiO2

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Granite (Pegmatitic) (Phaneritic Felsic Igneous Rock) — igneous

Granite (Pegmatitic)

Phaneritic Felsic Igneous Rock

Granite (Granitoid (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8 + SiO2)) — igneous

Granite

Granitoid (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8 + SiO2)

Green Aventurine (Quartz (SiO2) with Fuchsite inclusions) — Mineral

Green Aventurine

Quartz (SiO2) with Fuchsite inclusions

Chert (Nodule) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Nodule)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Basalt (Basalt (comprising Plagioclase feldspar, Pyroxene, and Olivine)) — igneous

Basalt

Basalt (comprising Plagioclase feldspar, Pyroxene, and Olivine)

Smoky Quartz Cluster (Smoky Quartz (Silicon Dioxide - SiO2)) — mineral

Smoky Quartz Cluster

Smoky Quartz (Silicon Dioxide - SiO2)

Desert Rose (Baryte or Gypsum Rose) (Baryte (BaSO4) or Gypsum (CaSO4·2H2O)) — mineral

Desert Rose (Baryte or Gypsum Rose)

Baryte (BaSO4) or Gypsum (CaSO4·2H2O)

Bauxite (Bauxite (Al(OH)3, γ-AlO(OH), and α-AlO(OH))) — sedimentary

Bauxite

Bauxite (Al(OH)3, γ-AlO(OH), and α-AlO(OH))

Chert (varietal Chalcedony or Flint) (Silicon dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (varietal Chalcedony or Flint)

Silicon dioxide (SiO2) - Microcrystalline Quartz

Diamond (in a jewelry setting) (Diamond (Carbon, C)) — mineral

Diamond (in a jewelry setting)

Diamond (Carbon, C)

Slag Glass (Cullet) (Amorphous Silicon Dioxide (SiO2) with metal oxide colorants) — Anthropogenic (Man-made)

Slag Glass (Cullet)

Amorphous Silicon Dioxide (SiO2) with metal oxide colorants

Anthropogenic (Man-made)

Slag (Anthropogenic Glass/Iron byproduct) (Ferro-silicate Slag) — Anthropogenic (Man-made)

Slag (Anthropogenic Glass/Iron byproduct)

Ferro-silicate Slag

Anthropogenic (Man-made)

Diorite (River Pebble) (Intermediate plutonic igneous rock) — igneous

Diorite (River Pebble)

Intermediate plutonic igneous rock

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

Sandstone

Arenite (composed primarily of Quartz: SiO2)

Yooperlite (Syenite clast containing fluorescent Sodalite) (Sodalite-bearing Syenite) — igneous

Yooperlite (Syenite clast containing fluorescent Sodalite)

Sodalite-bearing Syenite

Bituminous Coal (with Anthracite or Vitrinite inclusion) (Organic-rich Sedimentary Rock (Carboniferous classification)) — sedimentary

Bituminous Coal (with Anthracite or Vitrinite inclusion)

Organic-rich Sedimentary Rock (Carboniferous classification)

Slag (Ferrous Slag (Siliceous industrial waste)) — Anthropogenic (Man-made industrial byproduct)

Slag

Ferrous Slag (Siliceous industrial waste)

Anthropogenic (Man-made industrial byproduct)

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

Diorite

Diorite (Intermediate intrusive igneous rock)

Green Slag Glass (Cullet (Amorphous Silicon Dioxide with impurities)) — Man-made rock-like material

Green Slag Glass

Cullet (Amorphous Silicon Dioxide with impurities)

Man-made rock-like material

Malaysian 50 Sen Coin (Coinage (specific alloy unknown without metallurgical analysis, but typically brass or bronze for this denomination and era)) — Man-made object (coin)

Malaysian 50 Sen Coin

Coinage (specific alloy unknown without metallurgical analysis, but typically brass or bronze for this denomination and era)

Man-made object (coin)

Sandstone (likely Fossilized Wood or Concrete Simulacrum) (Arenite / Silicified Wood / Anthropogenic Concrete) — sedimentary

Sandstone (likely Fossilized Wood or Concrete Simulacrum)

Arenite / Silicified Wood / Anthropogenic Concrete

Ferruginous Sandstone (Ironstone) (Clastic Sedimentary Rock (composed of SiO2 with Fe2O3/FeO(OH) cement)) — sedimentary

Ferruginous Sandstone (Ironstone)

Clastic Sedimentary Rock (composed of SiO2 with Fe2O3/FeO(OH) cement)

Diamond (in jewelry setting) (Diamond (C - Carbon)) — mineral

Diamond (in jewelry setting)

Diamond (C - Carbon)

Granite (Phaneritic Plutonic Felsic Rock) — igneous

Granite

Phaneritic Plutonic Felsic Rock

Sandstone (likely Fossiliferous) (Arenite / Fossiliferous Sandstone (SiO2 composition)) — sedimentary

Sandstone (likely Fossiliferous)

Arenite / Fossiliferous Sandstone (SiO2 composition)