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

Botryoidal Quartz (Silicon Dioxide (SiO2)) — mineral

Botryoidal Quartz

Silicon Dioxide (SiO2)

Hematite Ball (Iron(III) oxide (Fe2O3)) — mineral

Hematite Ball

Iron(III) oxide (Fe2O3)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

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

Flint (Chert)

Silicon Dioxide (SiO2)

Mica Schist (with Muscovite) (Muscovite/Quartz Schist (KAl2(AlSi3O10)(OH)2)) — metamorphic

Mica Schist (with Muscovite)

Muscovite/Quartz Schist (KAl2(AlSi3O10)(OH)2)

Shale (Shale) — sedimentary

Shale

Shale

Sandstone (with Laminations) (Clastic sedimentary rock (primarily Quartz-based)) — sedimentary

Sandstone (with Laminations)

Clastic sedimentary rock (primarily Quartz-based)

Ironstone Concretion (Ferruginous Sandstone / Iron-rich Sedimentary Rock) — sedimentary

Ironstone Concretion

Ferruginous Sandstone / Iron-rich Sedimentary Rock

Yellow Ocherous Siltstone (Limonitic Shale) (Limonitic Siltstone / Goethite-rich Sedimentary Rock) — sedimentary

Yellow Ocherous Siltstone (Limonitic Shale)

Limonitic Siltstone / Goethite-rich Sedimentary Rock

Hag Stone (Piddock bored rock) (Calcareous sedimentary rock featuring Pholadidae borings) — sedimentary

Hag Stone (Piddock bored rock)

Calcareous sedimentary rock featuring Pholadidae borings

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Sandstone Pebble (Arenite (SiO2 with various cementing agents)) — sedimentary

Sandstone Pebble

Arenite (SiO2 with various cementing agents)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Sandstone (Quartzose) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartzose)

Arenite (primarily SiO2)

Chert (Tripolitic Chert / Flint Nodules) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Tripolitic Chert / Flint Nodules)

Microcrystalline Quartz (SiO2)

Pyrite (Iron Pyrite (FeS₂)) — Mineral

Pyrite

Iron Pyrite (FeS₂)

Sandstone (likely Graywacke or Arkose) (Arenite) — sedimentary

Sandstone (likely Graywacke or Arkose)

Arenite

Sandstone Pebble (Arenite (SiO2 primarily)) — sedimentary

Sandstone Pebble

Arenite (SiO2 primarily)

Quartz (Silicon Dioxide (SiO2)) — Mineral

Quartz

Silicon Dioxide (SiO2)

Quartzite with Quartz Vein (Metamorphosed Quartz-rich Sandstone (SiO2)) — metamorphic

Quartzite with Quartz Vein

Metamorphosed Quartz-rich Sandstone (SiO2)

Chert (Common Jasper/Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Common Jasper/Flint)

Microcrystalline Quartz (SiO2)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Sandstone with Quartz Vein (Arenite with Quartz (SiO2) protrusion) — sedimentary

Sandstone with Quartz Vein

Arenite with Quartz (SiO2) protrusion

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Fossiliferous Limestone (Biomicrite / Fossiliferous Limestone (CaCO3)) — fossil

Fossiliferous Limestone

Biomicrite / Fossiliferous Limestone (CaCO3)

Chert (with Calcite layering) (Silicon Dioxide (SiO2) with Calcium Carbonate (CaCO3)) — sedimentary

Chert (with Calcite layering)

Silicon Dioxide (SiO2) with Calcium Carbonate (CaCO3)

Lepidodendron Plant Fossil (Lepidodendron sp. (Lycopodiophyta)) — fossil

Lepidodendron Plant Fossil

Lepidodendron sp. (Lycopodiophyta)

Banded Chert / Cryptocrystalline Quartz (Silicon Dioxide (SiO2)) — sedimentary

Banded Chert / Cryptocrystalline Quartz

Silicon Dioxide (SiO2)

Trace Fossil (Lichenandites or Rhynie Chert Chert with Microfossils) (Trace fossil in microcrystalline quartz (SiO2)) — fossil

Trace Fossil (Lichenandites or Rhynie Chert Chert with Microfossils)

Trace fossil in microcrystalline quartz (SiO2)

Siltstone Pebble (Siltstone (composed of siliciclastic grains)) — sedimentary

Siltstone Pebble

Siltstone (composed of siliciclastic grains)

Chert (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert

Chert (Microcrystalline Quartz, SiO2)

Coprolite (Coprolite (fossilized feces)) — fossil

Coprolite

Coprolite (fossilized feces)

Sandstone with Fossil Leaf Impression (Sedimentary rock (Sandstone/Siltstone matrix) with Carbonaceous film fossil) — fossil

Sandstone with Fossil Leaf Impression

Sedimentary rock (Sandstone/Siltstone matrix) with Carbonaceous film fossil

Fossilized Oyster Shell (Exogyra or Ostrea (Gryphaeidae/Ostreidae family)) — fossil

Fossilized Oyster Shell

Exogyra or Ostrea (Gryphaeidae/Ostreidae family)

Chert (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz (SiO2)

Pyrite in Slate (Iron Disulfide (FeS2) in Low-grade Metamorphic Rock) — metamorphic

Pyrite in Slate

Iron Disulfide (FeS2) in Low-grade Metamorphic Rock

Sandstone (Ferruginous) (Arenite (composed primarily of SiO2 with Fe2O3 cement)) — sedimentary

Sandstone (Ferruginous)

Arenite (composed primarily of SiO2 with Fe2O3 cement)

Chert (Nodule) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Nodule)

Microcrystalline Quartz (SiO2)

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

Chert (Jasper/Common Opal mix)

Microcrystalline Quartz (SiO2)

Chert (Jasper/Chalcedony mix) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Chalcedony mix)

Microcrystalline Quartz (SiO2)