Rock Identifier

Category

Industrial Byproduct

Browse industrial byproduct specimens identified by the Rock Identifier community.

Learn about Industrial Byproduct in the encyclopedia

Adirondack Garnet

Adirondack Garnet

Almandine Garnet

Almandine Garnet

Tripolite

Diatomaceous Earth

Ruby (varieties of Corundum) (Aluminum oxide (Al2O3) with Chromium traces) — mineral

Ruby (varieties of Corundum)

Aluminum oxide (Al2O3) with Chromium traces

Red Garnet (likely Almandine or Pyrope) (Garnet group: X3Y2(SiO4)3 (e.g., Almandine: Fe3Al2Si3O12)) — mineral

Red Garnet (likely Almandine or Pyrope)

Garnet group: X3Y2(SiO4)3 (e.g., Almandine: Fe3Al2Si3O12)

Quartz Geode (Water-worn) (Silicon Dioxide (SiO2)) — mineral

Quartz Geode (Water-worn)

Silicon Dioxide (SiO2)

Sandstone with Concretions / Liesegang Rings (Arenite with iron oxide banding) — sedimentary

Sandstone with Concretions / Liesegang Rings

Arenite with iron oxide banding

Quartz Pebble (Chalcedony/Agate variety) (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble (Chalcedony/Agate variety)

Silicon Dioxide (SiO2)

Blue Sapphire (likely costume glass imitation) (Corundum (Al2O3) with iron/titanium impurities) — mineral

Blue Sapphire (likely costume glass imitation)

Corundum (Al2O3) with iron/titanium impurities

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

Sandstone (Ferruginous)

Arenite with Iron Oxides

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Vesicular Basalt (Extrusive Mafic Igneous Rock (Vesicular Basalt)) — igneous

Vesicular Basalt

Extrusive Mafic Igneous Rock (Vesicular Basalt)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Marble (Recrystallized Calcite (CaCO3)) — metamorphic

Marble

Recrystallized Calcite (CaCO3)

Gold in Quartz (Hydrothermal Quartz with Native Gold (SiO2 with Au)) — mineral

Gold in Quartz

Hydrothermal Quartz with Native Gold (SiO2 with Au)

Limestone (Calcitic Limestone (CaCO3)) — sedimentary

Limestone

Calcitic Limestone (CaCO3)

Anthracite Coal (Coal (predominantly carbon)) — sedimentary

Anthracite Coal

Coal (predominantly carbon)

Vesicular basalt (likely scoria) (Basaltic scoria; predominantly plagioclase, pyroxene, and olivine in a mafic volcanic glass/microcrystalline matrix) — igneous

Vesicular basalt (likely scoria)

Basaltic scoria; predominantly plagioclase, pyroxene, and olivine in a mafic volcanic glass/microcrystalline matrix

Unknown dark mineral fragment (Indeterminate; possibly a dark silicate mineral or slag-like geological fragment) — mineral

Unknown dark mineral fragment

Indeterminate; possibly a dark silicate mineral or slag-like geological fragment

Likely weathered metallic mineral or slag fragment (Uncertain; possibly limonite/goethite-coated iron mineral, or industrial iron slag) — mineral

Likely weathered metallic mineral or slag fragment

Uncertain; possibly limonite/goethite-coated iron mineral, or industrial iron slag

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Granodiorite (Granodiorite) — igneous

Granodiorite

Granodiorite

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Quartzite (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite

Metamorphosed Quartz Sandstone (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Metamorphic Quartz-rich Rock) — metamorphic

Quartzite

Metamorphic Quartz-rich Rock

Bentonite Clay (Montmorillonite (Al2H2O12Si4)) — sedimentary

Bentonite Clay

Montmorillonite (Al2H2O12Si4)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Basalt (Phaneritic or Diabase) (Mafic Igneous Rock (composed primarily of Pyroxene and Plagioclase Feldspar)) — igneous

Basalt (Phaneritic or Diabase)

Mafic Igneous Rock (composed primarily of Pyroxene and Plagioclase Feldspar)

Quartzite (Metamorphic rock primarily composed of Quartz (SiO2)) — metamorphic

Quartzite

Metamorphic rock primarily composed of Quartz (SiO2)

Black Sand (Magnetite/Heavy Mineral Concentrate) (Magnetite-rich Placers (Fe3O4)) — sedimentary

Black Sand (Magnetite/Heavy Mineral Concentrate)

Magnetite-rich Placers (Fe3O4)

Basalt with Vesicles (Vesicular Basalt (Mafic Extrusive)) — igneous

Basalt with Vesicles

Vesicular Basalt (Mafic Extrusive)

Pumice (Pumice (a vesicular volcanic glass)) — igneous

Pumice

Pumice (a vesicular volcanic glass)

Basalt (Basalt) — igneous

Basalt

Basalt

Bauxite (Aluminium ore consisting largely of the minerals gibbsite Al(OH)3, boehmite γ-AlO(OH) and diaspore α-AlO(OH)) — sedimentary

Bauxite

Aluminium ore consisting largely of the minerals gibbsite Al(OH)3, boehmite γ-AlO(OH) and diaspore α-AlO(OH)

Chalk (Sedimentary Limestone) (Calcite (CaCO3)) — sedimentary

Chalk (Sedimentary Limestone)

Calcite (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Granite Pebble (Granite (Felsic Intrusive Igneous Rock)) — igneous

Granite Pebble

Granite (Felsic Intrusive Igneous Rock)

Quartzite Pebble (Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Quartzite (SiO2)

Quartzite (Quartzite (mostly SiO2)) — metamorphic

Quartzite

Quartzite (mostly SiO2)

Coal (Bituminous) (Bituminous Coal (C)) — sedimentary

Coal (Bituminous)

Bituminous Coal (C)

Limestone (Sedimentary rock composed primarily of Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary rock composed primarily of Calcium Carbonate (CaCO3)

Basalt (Basalt (Ma-Fe Silicate)) — igneous

Basalt

Basalt (Ma-Fe Silicate)