Rock Identifier

Category

Sedimentary

Browse sedimentary specimens identified by the Rock Identifier community.

Learn about Sedimentary in the encyclopedia

Argillite

Arkose

Banded Iron Formation

Banded Iron Formation

Bauxite

Bituminous Coal

Bituminous Coal

Bituminous Shale

Bituminous Shale

Black Shale

Bog Iron

Breccia

Brecciated Jasper

Brecciated Jasper

Bumblebee Jasper

Bumblebee Jasper

Calcarenite

Fossil-bearing concretion, possibly containing a fossil shell or other organic inclusion (Calcareous concretion; exact fossil and host-rock composition are not identifiable from the image) — fossil

Fossil-bearing concretion, possibly containing a fossil shell or other organic inclusion

Calcareous concretion; exact fossil and host-rock composition are not identifiable from the image

Fossiliferous Sedimentary Rock (Sedimentary limestone with invertebrate fossil imprint) — fossil

Fossiliferous Sedimentary Rock

Sedimentary limestone with invertebrate fossil imprint

Sandstone or Siltstone (Arenite (if sandstone)) — Sedimentary

Sandstone or Siltstone

Arenite (if sandstone)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Shale (Shale (clastic sedimentary rock)) — sedimentary

Shale

Shale (clastic sedimentary rock)

Shale (or Mudstone/Siltstone) (Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)) — sedimentary

Shale (or Mudstone/Siltstone)

Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)

Fossiliferous Concretion (Septarian Concretion containing Brachiopods/Crinoids) — fossil

Fossiliferous Concretion

Septarian Concretion containing Brachiopods/Crinoids

Quartz pebble (Silicon dioxide (SiO2)) — sedimentary

Quartz pebble

Silicon dioxide (SiO2)

Sedimentary Sandstone (Arenite (Sedimentary Rock)) — sedimentary

Sedimentary Sandstone

Arenite (Sedimentary Rock)

Generic Pebble / Rock Fragment (Lithic fragment / Weathered rock) — sedimentary

Generic Pebble / Rock Fragment

Lithic fragment / Weathered rock

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Shale (Argillaceous sedimentary rock) — sedimentary

Shale

Argillaceous sedimentary rock

Mudstone (Argillite / Siliciclastic sedimentary rock) — sedimentary

Mudstone

Argillite / Siliciclastic sedimentary rock

Shale (Sedimentary Shale) — sedimentary

Shale

Sedimentary Shale

Shale and Pebble Fragment (Sedimentary Rock (Mudstone/Shale with Silica Pebble)) — sedimentary

Shale and Pebble Fragment

Sedimentary Rock (Mudstone/Shale with Silica Pebble)

Shale (Clastic Sedimentary Rock) — sedimentary

Shale

Clastic Sedimentary Rock

Brown Sandstone (River Rock) (Arenite) — sedimentary

Brown Sandstone (River Rock)

Arenite

Shale fragment (Shale (clay mineral rich sedimentary rock)) — sedimentary

Shale fragment

Shale (clay mineral rich sedimentary rock)

Shale / Mudstone (Sedimentary rock (Claystone / Mudstone / Shale)) — sedimentary

Shale / Mudstone

Sedimentary rock (Claystone / Mudstone / Shale)

Banded Siltstone / Mudstone Pebble (Siltstone / Argillite) — sedimentary

Banded Siltstone / Mudstone Pebble

Siltstone / Argillite

Sandstone with Quartz Vein (Quartz-veined Arenite (SiO2 in detrital quartz matrix)) — sedimentary

Sandstone with Quartz Vein

Quartz-veined Arenite (SiO2 in detrital quartz matrix)

Sandstone Pebble (Arenite (predominantly SiO2)) — sedimentary

Sandstone Pebble

Arenite (predominantly SiO2)

Sandstone Grain (Clastic Sedimentary Rock Grain (SiO2 dominated)) — sedimentary

Sandstone Grain

Clastic Sedimentary Rock Grain (SiO2 dominated)

Sandstone (with Iron Staining) (Clastic sedimentary rock (primarily SiO2 with Fe2O3)) — sedimentary

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2 with Fe2O3)

Shale or Slaty Mudstone (Argillaceous sedimentary rock) — sedimentary

Shale or Slaty Mudstone

Argillaceous sedimentary rock

Siltstone / Slate (Siltstone / Low-grade Slate) — sedimentary

Siltstone / Slate

Siltstone / Low-grade Slate

Sandstone pebble (Sandstone (mainly Quartz, SiO2)) — sedimentary

Sandstone pebble

Sandstone (mainly Quartz, SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Weathered Sedimentary Rock (Sedimentary Rock) — Sedimentary

Weathered Sedimentary Rock

Sedimentary Rock

Banded Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Banded Chert

Microcrystalline Quartz (SiO2)

Gastropod Fossil (Gastropoda) — fossil

Gastropod Fossil

Gastropoda

Conglomerate (Lithified, poorly sorted gravel; composition is uncertain from the image) — sedimentary

Conglomerate

Lithified, poorly sorted gravel; composition is uncertain from the image

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Slate (Slate, a fine-grained metamorphic rock composed mainly of mica-group minerals and quartz) — metamorphic

Slate

Slate, a fine-grained metamorphic rock composed mainly of mica-group minerals and quartz

Spirifer Brachiopod Fossil (Phylum Brachiopoda, Order Spiriferida) — fossil

Spirifer Brachiopod Fossil

Phylum Brachiopoda, Order Spiriferida

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Fossil Assortment and Geological Specimens (Various (including Ammonoidea)) — fossil

Fossil Assortment and Geological Specimens

Various (including Ammonoidea)

Sandstone or Mudstone (Sedimentary Rock) — sedimentary

Sandstone or Mudstone

Sedimentary Rock

Sandstone (with man-made markings) (Arenite (composed primarily of Quartz, SiO2)) — sedimentary

Sandstone (with man-made markings)

Arenite (composed primarily of Quartz, SiO2)

Sandstone (Clastic sedimentary rock (primarily quartz arenite)) — sedimentary

Sandstone

Clastic sedimentary rock (primarily quartz arenite)

Cone-in-cone structure (Limestone) (Cone-in-cone structure (Secondary Sedimentary Structure)) — sedimentary

Cone-in-cone structure (Limestone)

Cone-in-cone structure (Secondary Sedimentary Structure)

Banded Sedimentary Rock (Sedimentary rock with Liesegang banding) — sedimentary

Banded Sedimentary Rock

Sedimentary rock with Liesegang banding