Rock Identifier

Category

Sedimentary (Anthropogenic)

Browse sedimentary (anthropogenic) specimens identified by the Rock Identifier community.

Learn about Sedimentary (Anthropogenic) in the encyclopedia

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Breccia

Ironstone

Coal

Kambaba Jasper

Limestone

Asphalt Rock

Claystone

Mudstone

Sapropel

Bituminous Shale

Bituminous Shale

Weathered Sandstone or Siltstone (Sedimentary Rock) — sedimentary

Weathered Sandstone or Siltstone

Sedimentary Rock

Breccia (Sedimentary Breccia) — sedimentary

Breccia

Sedimentary Breccia

Sandstone (Sedimentary Arenite) — sedimentary

Sandstone

Sedimentary Arenite

Concretion (Sedimentary Concretion) — sedimentary

Concretion

Sedimentary Concretion

Conglomerate (Sedimentary Conglomerate) — sedimentary

Conglomerate

Sedimentary Conglomerate

Conglomerate (Sedimentary Conglomerate) — sedimentary

Conglomerate

Sedimentary Conglomerate

Conglomerate (Sedimentary Conglomerate) — sedimentary

Conglomerate

Sedimentary Conglomerate

Sandstone or Limestone (Sedimentary Rock) — Sedimentary

Sandstone or Limestone

Sedimentary Rock

Light-colored limestone (Calcitic limestone; primarily calcium carbonate (CaCO₃), mineral calcite) — sedimentary

Light-colored limestone

Calcitic limestone; primarily calcium carbonate (CaCO₃), mineral calcite

Conglomerate Pebble (with Chert / Quartz) (Sedimentary Conglomerate / Breccia Pebble) — sedimentary

Conglomerate Pebble (with Chert / Quartz)

Sedimentary Conglomerate / Breccia Pebble

Chert (Microcrystalline or cryptocrystalline quartz) — sedimentary

Chert

Microcrystalline or cryptocrystalline quartz

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

Yellow Calcite

Calcite (Calcium Carbonate, CaCO3)

Pyrite (Fool's Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Weathered limestone (Calcite-rich limestone, chiefly calcium carbonate (CaCO₃)) — sedimentary

Weathered limestone

Calcite-rich limestone, chiefly calcium carbonate (CaCO₃)

Rounded sandstone pebble (Quartz-rich sandstone, commonly arkose or lithic sandstone) — sedimentary

Rounded sandstone pebble

Quartz-rich sandstone, commonly arkose or lithic sandstone

Shale (Lutaceous sedimentary rock) — sedimentary

Shale

Lutaceous sedimentary rock

Shale (Argillite / Shaly Mudstone) — sedimentary

Shale

Argillite / Shaly Mudstone

Shale (Shale (Lutite)) — sedimentary

Shale

Shale (Lutite)

Banded Sedimentary Rock (Siliciclastic sedimentary rock) — sedimentary

Banded Sedimentary Rock

Siliciclastic sedimentary rock

Sandstone Anvil / Nutting Stone (Quartzose Sandstone (Sedimentary Rock)) — sedimentary

Sandstone Anvil / Nutting Stone

Quartzose Sandstone (Sedimentary Rock)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Yellow Chalcedony / Yellow Agate (Silicon Dioxide (SiO2)) — mineral

Yellow Chalcedony / Yellow Agate

Silicon Dioxide (SiO2)

Pyrite (Iron sulfide (FeS2)) — mineral

Pyrite

Iron sulfide (FeS2)

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

Sandstone (Ferruginous)

Arenite (with Iron Oxide cement)

Shale (Shale (clastic sedimentary rock composed of silt and clay-sized particles)) — sedimentary

Shale

Shale (clastic sedimentary rock composed of silt and clay-sized particles)

Shale (Fissile mudstone (Shale)) — sedimentary

Shale

Fissile mudstone (Shale)

Shale (Clastic Sedimentary Rock) — sedimentary

Shale

Clastic Sedimentary Rock

Shale (sub-type: Carbonaceous Shale) (Lutaceous Sedimentary Rock) — sedimentary

Shale (sub-type: Carbonaceous Shale)

Lutaceous Sedimentary Rock

Fossiliferous limestone (Bioclastic limestone, predominantly calcite (CaCO₃)) — sedimentary

Fossiliferous limestone

Bioclastic limestone, predominantly calcite (CaCO₃)

Weathered brown rock, likely sandstone or iron-rich sedimentary stone (Indeterminate siliciclastic rock; likely quartz-rich sandstone with iron-oxide cement) — sedimentary

Weathered brown rock, likely sandstone or iron-rich sedimentary stone

Indeterminate siliciclastic rock; likely quartz-rich sandstone with iron-oxide cement

Brown Sandstone (Arenite (primarily Quartz and Feldspar, with Iron Oxide cement)) — sedimentary

Brown Sandstone

Arenite (primarily Quartz and Feldspar, with Iron Oxide cement)

Ferruginous Sandstone (Arenite with Iron-Oxide cement (Fe2O3 · nH2O)) — sedimentary

Ferruginous Sandstone

Arenite with Iron-Oxide cement (Fe2O3 · nH2O)

Weathered sandstone or quartz-rich sedimentary rock (Likely quartz arenite/subarkose; predominantly quartz (SiO₂) with feldspar and iron-oxide cement) — sedimentary

Weathered sandstone or quartz-rich sedimentary rock

Likely quartz arenite/subarkose; predominantly quartz (SiO₂) with feldspar and iron-oxide cement

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Fossil-bearing Sedimentary Rock (Sedimentum cum fossili) — fossil

Fossil-bearing Sedimentary Rock

Sedimentum cum fossili

Quartz-veined Sandstone (Sedimentary rock with quartz vein (SiO2)) — sedimentary

Quartz-veined Sandstone

Sedimentary rock with quartz vein (SiO2)

Fossil shell (Likely a fossilized marine bivalve shell; exact taxon is indeterminate from the image.) — fossil

Fossil shell

Likely a fossilized marine bivalve shell; exact taxon is indeterminate from the image.

Pet Rock (Man-made Quartzite or Granite Cobble) (Silicon dioxide (SiO2) mixture; commonly composed of Quartz, Feldspar, and Mica) — igneous or metamorphic (base stone); anthropogenic (decoration)

Pet Rock (Man-made Quartzite or Granite Cobble)

Silicon dioxide (SiO2) mixture; commonly composed of Quartz, Feldspar, and Mica

igneous or metamorphic (base stone); anthropogenic (decoration)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Shale (Argillite / Shale) — sedimentary

Shale

Argillite / Shale

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Silty Shale (Silty Shale (Fissile Sedimentary Rock)) — sedimentary

Silty Shale

Silty Shale (Fissile Sedimentary Rock)