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

Red Jasper (Quartz) (Silicon Dioxide (SiO2) with Iron impurities) — sedimentary

Red Jasper (Quartz)

Silicon Dioxide (SiO2) with Iron impurities

Red Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Red Jasper

Microcrystalline Quartz (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

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

Yellow Jasper

Silicon Dioxide (SiO2) with iron hydroxides

Blue calcite (probable) (Calcite, calcium carbonate (CaCO₃)) — mineral

Blue calcite (probable)

Calcite, calcium carbonate (CaCO₃)

Rough amber-like brown mineral specimen (Uncertain from photograph; possibly iron-stained quartz, common opal, or resinous amber) — mineral

Rough amber-like brown mineral specimen

Uncertain from photograph; possibly iron-stained quartz, common opal, or resinous amber

Red Jasper (Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Yellow Jasper (Silicon dioxide (SiO2)) — sedimentary

Yellow Jasper

Silicon dioxide (SiO2)

Geode (Unopened) (Silica-rich concretion (SiO2)) — sedimentary

Geode (Unopened)

Silica-rich concretion (SiO2)

Jasper and Ironstone (likely Jasperized Ironstone) (Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3)) — sedimentary

Jasper and Ironstone (likely Jasperized Ironstone)

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3)

Sandstone (Common Quartz Pebble/Rock) (Sedimentary rock / Quartz arenite) — sedimentary

Sandstone (Common Quartz Pebble/Rock)

Sedimentary rock / Quartz arenite

Common Opal / Chert (Hydrated silica (SiO2·nH2O) or Microcrystalline Quartz (SiO2)) — mineral

Common Opal / Chert

Hydrated silica (SiO2·nH2O) or Microcrystalline Quartz (SiO2)

Fossil gastropod shell (Gastropoda; species cannot be determined from the image) — fossil

Fossil gastropod shell

Gastropoda; species cannot be determined from the image

Sandstone (Ferruginous) (Arenite (SiO2 with Fe2O3/FeO(OH) cement)) — sedimentary

Sandstone (Ferruginous)

Arenite (SiO2 with Fe2O3/FeO(OH) cement)

Sandstone (Pebble) (Sandstone) — sedimentary

Sandstone (Pebble)

Sandstone

Sandstone (Quartzite-rich Cobble) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (Quartzite-rich Cobble)

Clastic sedimentary rock (primarily SiO2)

Limestone Cobble (Sedimentary Limestone (CaCO3)) — sedimentary

Limestone Cobble

Sedimentary Limestone (CaCO3)

Coal (Carbonaceous sedimentary rock) — sedimentary

Coal

Carbonaceous sedimentary rock

Banded River Stone (Greywacke or Siltstone subtype) (Sedimentary Banded Siltstone) — sedimentary

Banded River Stone (Greywacke or Siltstone subtype)

Sedimentary Banded Siltstone

Conglomerate (Conglomerate (Sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (Sedimentary rock)

Conglomerate (Conglomerate (Sedimentary Rock)) — sedimentary

Conglomerate

Conglomerate (Sedimentary Rock)

Conglomerate (Conglomerate (Sedimentary Rock)) — sedimentary

Conglomerate

Conglomerate (Sedimentary Rock)

Stream-Rounded Shale or Mudstone (Argillaceous sedimentary rock) — sedimentary

Stream-Rounded Shale or Mudstone

Argillaceous sedimentary rock

Conglomerate (Clastic Sedimentary Conglomerate) — sedimentary

Conglomerate

Clastic Sedimentary Conglomerate

Conglomerate (Clastic Sedimentary Rock) — sedimentary

Conglomerate

Clastic Sedimentary Rock

River Cobble (likely Siltstone or Sandstone) (Clastic Sedimentary Rock) — sedimentary

River Cobble (likely Siltstone or Sandstone)

Clastic Sedimentary Rock

Conglomerate (Conglomerative Sedimentary Rock) — sedimentary

Conglomerate

Conglomerative Sedimentary Rock

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Red Sandstone (Clastic Sedimentary Rock) — sedimentary

Red Sandstone

Clastic Sedimentary Rock

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

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

Argillite / Mudstone (Argillaceous sedimentary rock) — sedimentary

Argillite / Mudstone

Argillaceous sedimentary rock

Sandstone / Quartzite (Sedimentary quartz arenite) — sedimentary

Sandstone / Quartzite

Sedimentary quartz arenite

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock