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

Cubic Zirconia (CZ) in Gold-Plated Setting (Cubic Zirconium Dioxide (ZrO2)) — mineral

Cubic Zirconia (CZ) in Gold-Plated Setting

Cubic Zirconium Dioxide (ZrO2)

Sandstone (Ferruginous) (Arenite (SiO2 with Fe2O3 inclusions)) — sedimentary

Sandstone (Ferruginous)

Arenite (SiO2 with Fe2O3 inclusions)

Chert (Jasper/Quartzite) (Microcrystalline Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper/Quartzite)

Microcrystalline Silicon Dioxide (SiO2)

Yellow Calcite (Banded Calcite) (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite (Banded Calcite)

Calcium Carbonate (CaCO3)

Yellow Quartz Pebble (SiO2 (Silicon Dioxide)) — mineral

Yellow Quartz Pebble

SiO2 (Silicon Dioxide)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Chalcedony (Quartz) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Quartz)

Silicon Dioxide (SiO2)

Blue Sapphire (Raw/Tumbled Corundum) (Corundum (Aluminum Oxide, Al2O3 with Fe/Ti traces)) — mineral

Blue Sapphire (Raw/Tumbled Corundum)

Corundum (Aluminum Oxide, Al2O3 with Fe/Ti traces)

Gold-bearing Quartz (Auriferous Quartz (SiO2 with native Au)) — mineral

Gold-bearing Quartz

Auriferous Quartz (SiO2 with native Au)

Garnet Schist (Almandine-Garnet Schist) — metamorphic

Garnet Schist

Almandine-Garnet Schist

Vesicular Basalt (Lava Rock) (Basalt) — igneous

Vesicular Basalt (Lava Rock)

Basalt

Fossiliferous Limestone Pebble (Calcium Carbonate (CaCO3) with Biogenic Inclusions) — sedimentary

Fossiliferous Limestone Pebble

Calcium Carbonate (CaCO3) with Biogenic Inclusions

Quartz Druze on Matrix (Silicon Dioxide (SiO2)) — mineral

Quartz Druze on Matrix

Silicon Dioxide (SiO2)

Banded Sandstone (Differential Weathering) (Clastic Sedimentary Rock (primarily SiO2)) — sedimentary

Banded Sandstone (Differential Weathering)

Clastic Sedimentary Rock (primarily SiO2)

Rough Diamond (Diamond (Native Element Carbon, C)) — mineral

Rough Diamond

Diamond (Native Element Carbon, C)

Mica Schist (with Muscovite) (Muscovite/Quartz Schist (KAl2(AlSi3O10)(OH)2)) — metamorphic

Mica Schist (with Muscovite)

Muscovite/Quartz Schist (KAl2(AlSi3O10)(OH)2)

Iron meteorite fragment (probable) (Fe–Ni metallic meteorite, commonly octahedrite (kamacite–taenite)) — meteorite

Iron meteorite fragment (probable)

Fe–Ni metallic meteorite, commonly octahedrite (kamacite–taenite)

Tumbled amethyst (Quartz, SiO₂; purple variety colored mainly by trace iron and irradiation) — mineral

Tumbled amethyst

Quartz, SiO₂; purple variety colored mainly by trace iron and irradiation

Tumbled green aventurine (Quartz (SiO₂), commonly containing fuchsite mica inclusions) — mineral

Tumbled green aventurine

Quartz (SiO₂), commonly containing fuchsite mica inclusions

Greenstone, likely serpentine or green jasper (Serpentine-group minerals, chiefly antigorite/lizardite; possibly quartz-rich jasper) — metamorphic

Greenstone, likely serpentine or green jasper

Serpentine-group minerals, chiefly antigorite/lizardite; possibly quartz-rich jasper

Amethyst quartz cluster (Quartz, SiO₂; purple color caused mainly by iron-related defects and irradiation) — mineral

Amethyst quartz cluster

Quartz, SiO₂; purple color caused mainly by iron-related defects and irradiation

Slate (Metamorphic Pelitic Rock) — metamorphic

Slate

Metamorphic Pelitic Rock

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Black Obsidian (Volcanic Glass (SiO2 with impurities)) — igneous

Black Obsidian

Volcanic Glass (SiO2 with impurities)

Chert (Jasper) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper)

Silicon Dioxide (SiO2)

Gray Granite (Phaneritic plutonic rock (Granite)) — igneous

Gray Granite

Phaneritic plutonic rock (Granite)

Libyan Desert Glass (Impactite (vitreous silica), SiO2) — mineral

Libyan Desert Glass

Impactite (vitreous silica), SiO2

Chrysocolla (Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)) — mineral

Chrysocolla

Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)

Diamond (Faceted) (Carbon (C)) — mineral

Diamond (Faceted)

Carbon (C)

Aragonite Star Cluster (Aragonite (Calcium Carbonate, CaCO3)) — mineral

Aragonite Star Cluster

Aragonite (Calcium Carbonate, CaCO3)

Chert or Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Chert or Jasper

Microcrystalline Quartz (SiO2)

Green Sandstone (Glauconitic Sandstone) (Glauconitic Sandstone (K(Fe,Al)2(Si,Al)4O10(OH)2)) — sedimentary

Green Sandstone (Glauconitic Sandstone)

Glauconitic Sandstone (K(Fe,Al)2(Si,Al)4O10(OH)2)

Granodiorite / Granite (Weathered) (Granodiorite) — Igneous

Granodiorite / Granite (Weathered)

Granodiorite

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Sandstone (Clastic sedimentary rock (Quartz arenite)) — sedimentary

Sandstone

Clastic sedimentary rock (Quartz arenite)

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Sandstone (Clastic sedimentary rock) — sedimentary

Sandstone

Clastic sedimentary rock

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Microcline Feldspar (KAlSi3O8) — mineral

Microcline Feldspar

KAlSi3O8