Rock Identifier

Category

Industrial Byproduct (Anthropogenic Material)

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

Learn about Industrial Byproduct (Anthropogenic Material) in the encyclopedia

Adirondack Garnet

Adirondack Garnet

Peat

Almandine Garnet

Almandine Garnet

Dunite

Limonite

Shell Opal

Madagascar Opal

Lavender Obsidian

Electric Blue Obsidian

Orange Obsidian

Diamond

Metarhyolite

Pumice (Pumice (volcanic glass froth)) — igneous

Pumice

Pumice (volcanic glass froth)

Basalt (Mafic volcanic rock) — igneous

Basalt

Mafic volcanic rock

Anthracite Coal (Anthracite coal (High-rank coal)) — sedimentary

Anthracite Coal

Anthracite coal (High-rank coal)

Basalt River Stone (Basalt) — igneous

Basalt River Stone

Basalt

Pumice (Pumice (Vesicular volcanic glass)) — igneous

Pumice

Pumice (Vesicular volcanic glass)

Granite and Igneous Mix (Phaneritic Felsic to Mafic Intrusive Rocks) — igneous

Granite and Igneous Mix

Phaneritic Felsic to Mafic Intrusive Rocks

Shale (Shale (claystone/mudstone)) — sedimentary

Shale

Shale (claystone/mudstone)

Conglomerate (Conglomerate (Clastic sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (Clastic sedimentary rock)

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

Limestone

Limestone (Calcium Carbonate, CaCO3)

Bauxite (Bauxite (mixture including Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))) — sedimentary

Bauxite

Bauxite (mixture including Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Granite (Phaneritic Felsic Igneous Rock) — igneous

Granite

Phaneritic Felsic Igneous Rock

Basalt River Stone (Basaltic Igneous Rock) — igneous

Basalt River Stone

Basaltic Igneous Rock

Sea Glass (Man-made vitreous material) — mineral

Sea Glass

Man-made vitreous material

Yellow Jasper (Silicon Dioxide (SiO2) with iron inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron inclusions

Iron Meteorite / Chondrite (Possible) (Extraterrestrial stony-iron or chondritic meteorite) — meteorite

Iron Meteorite / Chondrite (Possible)

Extraterrestrial stony-iron or chondritic meteorite

Chert Pebble (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert Pebble

Cryptocrystalline Quartz (SiO2)

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

Chert (Flint)

Silicon dioxide (SiO2)

Tumbled green gemstone, likely dyed howlite or serpentine (Most consistent with dyed howlite (Ca2B5SiO9(OH)5); exact identification requires testing) — mineral

Tumbled green gemstone, likely dyed howlite or serpentine

Most consistent with dyed howlite (Ca2B5SiO9(OH)5); exact identification requires testing

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Turquoise (Turquoise (CuAl6(PO4)4(OH)8·4H2O)) — mineral

Turquoise

Turquoise (CuAl6(PO4)4(OH)8·4H2O)

Opalite (Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)) — mineraloid

Opalite

Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)

Quartzite (Engineered Stone) (Silicon Dioxide (SiO2) based synthetic composite) — metamorphic

Quartzite (Engineered Stone)

Silicon Dioxide (SiO2) based synthetic composite

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Zircon (Zirconium Silicate (ZrSiO₄)) — mineral

Zircon

Zirconium Silicate (ZrSiO₄)

Quartz Vein in Siltstone (SiO2 (Quartz) on clastic sedimentary matrix) — sedimentary

Quartz Vein in Siltstone

SiO2 (Quartz) on clastic sedimentary matrix

Quartz (Iron-stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Gastropod Internal Mold (Steinkern) (Class Gastropoda fossil mold (Phylum Mollusca)) — sedimentary

Gastropod Internal Mold (Steinkern)

Class Gastropoda fossil mold (Phylum Mollusca)

Ocean Jasper or Orbicular Jasper (SiO2) — mineral

Ocean Jasper or Orbicular Jasper

SiO2

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Sandstone (Ferruginous) (Arenite (with Iron Oxide)) — sedimentary

Sandstone (Ferruginous)

Arenite (with Iron Oxide)

Engineerged Quartz (Quartz Composite) (SiO2 (Silicon Dioxide) in a polymer resin matrix) — mineral

Engineerged Quartz (Quartz Composite)

SiO2 (Silicon Dioxide) in a polymer resin matrix

Opalite (Man-made Glass (Synthetic Opalized Glass)) — mineral

Opalite

Man-made Glass (Synthetic Opalized Glass)

Acrylic or Resin (Synthetic Imitation) (Polymethyl Methacrylate (PMMA) or Polyepoxide) — Synthetic/Man-made Polymer

Acrylic or Resin (Synthetic Imitation)

Polymethyl Methacrylate (PMMA) or Polyepoxide

Synthetic/Man-made Polymer

Limestone (specifically Crushed Limestone/Calcictic) (Calcium Carbonate (CaCO3)) — sedimentary

Limestone (specifically Crushed Limestone/Calcictic)

Calcium Carbonate (CaCO3)

Iron-rich meteorite candidate (Possibly an iron meteorite or stony-iron meteorite; unverified Fe–Ni alloy) — meteorite

Iron-rich meteorite candidate

Possibly an iron meteorite or stony-iron meteorite; unverified Fe–Ni alloy

Petrified Wood (Silicified wood (Quartz/Chalcedony replacement of organic matter)) — fossil

Petrified Wood

Silicified wood (Quartz/Chalcedony replacement of organic matter)

Meteorite (Chondrite / Iron-Nickel Meteorite fragment) — meteorite

Meteorite

Chondrite / Iron-Nickel Meteorite fragment

Chert (or potentially massive Quartz/Quartzite) (SiO2 (Silicon Dioxide)) — sedimentary (if chert) / metamorphic (if quartzite)

Chert (or potentially massive Quartz/Quartzite)

SiO2 (Silicon Dioxide)

sedimentary (if chert) / metamorphic (if quartzite)

Limestone and Quartz Gravel with Petrified Wood (Sedimentary gravel aggregate and fossilized wood) — sedimentary

Limestone and Quartz Gravel with Petrified Wood

Sedimentary gravel aggregate and fossilized wood

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Fossil Shark Tooth (Chondrichthyes (Class)) — fossil

Fossil Shark Tooth

Chondrichthyes (Class)