Rock Identifier

Category

Industrial Byproduct (Anthropogenic Rock Like Material)

Browse industrial byproduct (anthropogenic rock like material) specimens identified by the Rock Identifier community.

Learn about Industrial Byproduct (Anthropogenic Rock Like Material) in the encyclopedia

Calc-Silicate Rock

Calc-Silicate Rock

Argillite

Dunite

Porcelanite

Felsite

Granulite

Metarhyolite

Limonite

Orbicular Granite

Orbicular Granite

Bauxite

Granodiorite

Metabasalt

Botryoidal chalcedony (possibly agate/geode material) (Microcrystalline quartz, SiO₂; commonly chalcedony with quartz-lined cavities and iron-oxide staining) — mineral

Botryoidal chalcedony (possibly agate/geode material)

Microcrystalline quartz, SiO₂; commonly chalcedony with quartz-lined cavities and iron-oxide staining

Sandstone (Pebble) (Sandstone (principally SiO2 with iron oxide impurities)) — sedimentary

Sandstone (Pebble)

Sandstone (principally SiO2 with iron oxide impurities)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Chert (Common Opal variant) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Common Opal variant)

Microcrystalline Quartz (SiO2)

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

Sandstone

Clastic sedimentary rock (primarily SiO2)

Pumice and Scoria (Vesicular Volcanic Ejecta (Rhyolite/Andesite/Basalt)) — igneous

Pumice and Scoria

Vesicular Volcanic Ejecta (Rhyolite/Andesite/Basalt)

Limestone with fossiliferous textures (Bioclastic Limestone (CaCO3)) — sedimentary

Limestone with fossiliferous textures

Bioclastic Limestone (CaCO3)

Greenstone / Greenschist (Greenschist facies metamorphic rock) — metamorphic

Greenstone / Greenschist

Greenschist facies metamorphic rock

Fossilized bivalve shell (Bivalvia (likely a venerid or similar clam); shell composed mainly of CaCO₃ as aragonite/calcite) — fossil

Fossilized bivalve shell

Bivalvia (likely a venerid or similar clam); shell composed mainly of CaCO₃ as aragonite/calcite

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Basalt (Mafic Igneous Rock) — igneous

Basalt

Mafic Igneous Rock

Granite (Granite (Mainly Quartz, Alkali Feldspar, and Plagioclase)) — igneous

Granite

Granite (Mainly Quartz, Alkali Feldspar, and Plagioclase)

Chert (Tan/Grey variety) (Microcrystalline or cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Tan/Grey variety)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Quartzite (Ferruginous Quartz) (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — metamorphic

Quartzite (Ferruginous Quartz)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Pumice (Pumice (volcanic glass)) — igneous

Pumice

Pumice (volcanic glass)

River Pebble (Lithified clastic sediment) — sedimentary

River Pebble

Lithified clastic sediment

Sandstone (Quartz Arenite / Clastic Sedimentary Rock) — sedimentary

Sandstone

Quartz Arenite / Clastic Sedimentary Rock

Sandstone (Sedimentary Rock (Quartz arenite / Lithic sandstone)) — sedimentary

Sandstone

Sedimentary Rock (Quartz arenite / Lithic sandstone)

Sandstone (likely Ferruginous) (Arenite (SiO2 with iron oxide impurities)) — sedimentary

Sandstone (likely Ferruginous)

Arenite (SiO2 with iron oxide impurities)

Sandstone (Clastic Sedimentary Rock (composed primarily of Quartz, SiO2)) — sedimentary

Sandstone

Clastic Sedimentary Rock (composed primarily of Quartz, SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Vuggy Limestone (Carbonate Sedimentary Rock with Vuggy Porosity (CaCO3)) — sedimentary

Vuggy Limestone

Carbonate Sedimentary Rock with Vuggy Porosity (CaCO3)

Pink Granite (Phaneritic Felsic Igneous Rock (Granite, rich in Potassium Feldspar)) — igneous

Pink Granite

Phaneritic Felsic Igneous Rock (Granite, rich in Potassium Feldspar)

Sandstone (River Rock) (Arenite (SiO2 based sedimentary rock)) — sedimentary

Sandstone (River Rock)

Arenite (SiO2 based sedimentary rock)

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

Chert (specifically Flint or Jasper variant)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Porphyritic Basalt (Basalt (Extrusive Igneous Rock)) — igneous

Porphyritic Basalt

Basalt (Extrusive Igneous Rock)

Granitic Pegmatite (Granitic Pegmatite (primarily SiO2 with KAlSi3O8)) — igneous

Granitic Pegmatite

Granitic Pegmatite (primarily SiO2 with KAlSi3O8)

Conglomerate (Conglomerate (Clastic Sedimentary Rock)) — sedimentary

Conglomerate

Conglomerate (Clastic Sedimentary Rock)

Dark rounded pebble, likely basalt or slag (Probable fine-grained mafic rock; possibly basalt (plagioclase–pyroxene) or industrial iron/steel slag) — igneous

Dark rounded pebble, likely basalt or slag

Probable fine-grained mafic rock; possibly basalt (plagioclase–pyroxene) or industrial iron/steel slag

Red Sandstone (Arenite (SiO2 based with Fe2O3)) — sedimentary

Red Sandstone

Arenite (SiO2 based with Fe2O3)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Chert (often called Flint) (Chert (Microcrystalline Silicon Dioxide, SiO2)) — sedimentary

Chert (often called Flint)

Chert (Microcrystalline Silicon Dioxide, SiO2)

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

Chert (specifically Flint or Common Opal variant)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert Nodules in Limestone (Microcrystalline Quartz (SiO2) within Calcium Carbonate (CaCO3)) — sedimentary

Chert Nodules in Limestone

Microcrystalline Quartz (SiO2) within Calcium Carbonate (CaCO3)

Sandstone (Arenite (SiO2 principal component)) — sedimentary

Sandstone

Arenite (SiO2 principal component)

Chert (White Chert/Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (White Chert/Flint)

Microcrystalline Quartz (SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Orange Quartzite (River Pebble) (Quartzite (SiO2 with iron oxide inclusions)) — metamorphic

Orange Quartzite (River Pebble)

Quartzite (SiO2 with iron oxide inclusions)

Ruby (Raw/Rough) (Corundum (Al2O3 with Chromium trace)) — mineral

Ruby (Raw/Rough)

Corundum (Al2O3 with Chromium trace)

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

Sandstone

Arenite (composed primarily of SiO2)

Sandstone Cobble (Arenite (predominantly Quartz Sandstone)) — sedimentary

Sandstone Cobble

Arenite (predominantly Quartz Sandstone)

Serpentine (Antigorite-Lizardite-Chrysotile (Mg3Si2O5(OH)4)) — metamorphic

Serpentine

Antigorite-Lizardite-Chrysotile (Mg3Si2O5(OH)4)