Rock Identifier

Category

Sedimentary Like (Industrial Composite)

Browse sedimentary like (industrial composite) specimens identified by the Rock Identifier community.

Learn about Sedimentary Like (Industrial Composite) in the encyclopedia

Adirondack Garnet

Adirondack Garnet

Conglomerate

Blue Line Jasper

Lime Green Tourmaline

Lime Green Tourmaline

Quartzite Sandstone

Quartzite Sandstone

Breccia

Ironstone

Sea Sediment Jasper

Argillite

Needle Tourmaline

Needle Tourmaline

Calc-Silicate Rock

Calc-Silicate Rock

Color-Change Tourmaline

Color-Change Tourmaline

Quartz Druzy (Geode Fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz Druzy (Geode Fragment)

Silicon Dioxide (SiO2)

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Quartz pebble (Silicon dioxide (SiO2)) — Mineral

Quartz pebble

Silicon dioxide (SiO2)

Quartz Geode (Silicon Dioxide (SiO2) within a geode) — mineral

Quartz Geode

Silicon Dioxide (SiO2) within a geode

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Sandstone (lithic wacke) (Arenite / Lithic Wacke (mostly SiO2 with rock fragments)) — sedimentary

Sandstone (lithic wacke)

Arenite / Lithic Wacke (mostly SiO2 with rock fragments)

Agate (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Agate

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (often called Flint or Jasper) (Silicon Dioxide (SiO2)) — sedimentary

Chert (often called Flint or Jasper)

Silicon Dioxide (SiO2)

Polished Bloodstone (likely dyed agate/jasper) (Cryptocrystalline quartz, SiO₂; commonly chalcedony with iron-oxide inclusions) — gemstone

Polished Bloodstone (likely dyed agate/jasper)

Cryptocrystalline quartz, SiO₂; commonly chalcedony with iron-oxide inclusions

Ironstone (Limonitic/Hematitic Sandstone) (Ferruginous sandstone (predominantly Fe2O3 and FeO(OH))) — sedimentary

Ironstone (Limonitic/Hematitic Sandstone)

Ferruginous sandstone (predominantly Fe2O3 and FeO(OH))

Chert (Red Jasper variant) (Silicon dioxide (SiO2)) — sedimentary

Chert (Red Jasper variant)

Silicon dioxide (SiO2)

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

Chert / Jasper

Silicon Dioxide (SiO2)

Bauxite (AlOx(OH)3-2x (mixture of Gibbsite, Boehmite, and Diaspore)) — sedimentary

Bauxite

AlOx(OH)3-2x (mixture of Gibbsite, Boehmite, and Diaspore)

Sandstone (Quartz-rich) (Clastic sedimentary rock (SiO2 primary)) — sedimentary

Sandstone (Quartz-rich)

Clastic sedimentary rock (SiO2 primary)

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

Chert (Red Jasper)

Microcrystalline Quartz (SiO2)

Concrete aggregate surface (Human-made cementitious composite; primarily calcium-silicate-hydrate cement with mixed silicate aggregate) — sedimentary

Concrete aggregate surface

Human-made cementitious composite; primarily calcium-silicate-hydrate cement with mixed silicate aggregate

Asphalt Concrete (Bituminous conglomerate) — sedimentary

Asphalt Concrete

Bituminous conglomerate

Fossil brachiopod (Brachiopoda; likely a spiriferid or strophomenid brachiopod) — fossil

Fossil brachiopod

Brachiopoda; likely a spiriferid or strophomenid brachiopod

Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

Polished multicolored stone bead bracelet (Likely dyed or treated agate/jasper, chiefly microcrystalline quartz (SiO₂)) — mineral

Polished multicolored stone bead bracelet

Likely dyed or treated agate/jasper, chiefly microcrystalline quartz (SiO₂)

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Agate (Silicon Dioxide / Cryptocrystalline Quartz (SiO2)) — mineral

Agate

Silicon Dioxide / Cryptocrystalline Quartz (SiO2)

Malachite cabochon or polished bead (Malachite, Cu₂CO₃(OH)₂) — mineral

Malachite cabochon or polished bead

Malachite, Cu₂CO₃(OH)₂

Chert (Flint variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint variety)

Silicon Dioxide (SiO2)

Dalmatian Jasper (Microcrystalline quartz feldspar composite with arfvedsonite or black tourmaline) — igneous

Dalmatian Jasper

Microcrystalline quartz feldspar composite with arfvedsonite or black tourmaline

Freshwater Pearl (Calcium Carbonate (CaCO3) - Aragonite/Calcite organic composite) — gemstone

Freshwater Pearl

Calcium Carbonate (CaCO3) - Aragonite/Calcite organic composite

Chert (Common Opal/Quartz mix) (Microcrystalline Silicon Dioxide (SiO2)) — sedimentary

Chert (Common Opal/Quartz mix)

Microcrystalline Silicon Dioxide (SiO2)

Red Sandstone (Ferruginous Sandstone (SiO2 with Fe2O3)) — sedimentary

Red Sandstone

Ferruginous Sandstone (SiO2 with Fe2O3)

Gneiss (Cobble) (Gneiss) — metamorphic

Gneiss (Cobble)

Gneiss

Fossilized Oyster Shell (Gryphaea or Crassostrea fossil (Calcium Carbonate, CaCO3)) — sedimentary

Fossilized Oyster Shell

Gryphaea or Crassostrea fossil (Calcium Carbonate, CaCO3)

Anthracite Coal (Carbon (with organic impurities)) — sedimentary

Anthracite Coal

Carbon (with organic impurities)

Limestone River Pebble (Calcium carbonate (CaCO3) - micritic limestone) — sedimentary

Limestone River Pebble

Calcium carbonate (CaCO3) - micritic limestone

Clear Quartz Crystal (Quartz (Silicon Dioxide, SiO2)) — mineral

Clear Quartz Crystal

Quartz (Silicon Dioxide, SiO2)

Garnet in Schist (Polished Tower) (Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist) — metamorphic

Garnet in Schist (Polished Tower)

Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist

Bauxite (Bauxite (Mixture of Al(OH)3, AlO(OH), and Fe2O3)) — sedimentary

Bauxite

Bauxite (Mixture of Al(OH)3, AlO(OH), and Fe2O3)

Garnet Schist (Almandine-Mica Schist) — metamorphic

Garnet Schist

Almandine-Mica Schist

Chalcedony Geode Part (Agate/Quartz) (Silicon Dioxide (SiO2)) — mineral

Chalcedony Geode Part (Agate/Quartz)

Silicon Dioxide (SiO2)

Sandstone (Ferruginous) (Arenite (primarily SiO2 with Fe2O3 staining)) — sedimentary

Sandstone (Ferruginous)

Arenite (primarily SiO2 with Fe2O3 staining)

Dyed Agate Slice (Silicon Dioxide (SiO2) with artificial colorants) — Mineral (variety of Chalcedony)

Dyed Agate Slice

Silicon Dioxide (SiO2) with artificial colorants

Mineral (variety of Chalcedony)

Ferruginous Sandstone (Arenite with Iron-Oxide Cement (SiO2 with Fe2O3/FeO(OH))) — sedimentary

Ferruginous Sandstone

Arenite with Iron-Oxide Cement (SiO2 with Fe2O3/FeO(OH))

Laterite (Red Clay) (Laterite (Fe2O3 · nH2O and Al2O3 · nH2O)) — sedimentary

Laterite (Red Clay)

Laterite (Fe2O3 · nH2O and Al2O3 · nH2O)

Agate (Agate (Microcrystalline Quartz, SiO2)) — mineral

Agate

Agate (Microcrystalline Quartz, SiO2)