sedimentary

Sedimentary Rock Outcrop

Stratified sedimentary rock sequence

Displays distinct horizontal bedding layers, varying colors from gray to brown, fine-grained texture, and moderate hardness depending on cementation.

Identified November 14, 2026More sedimentary →

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Physical properties

Displays distinct horizontal bedding layers, varying colors from gray to brown, fine-grained texture, and moderate hardness depending on cementation.

Formed through the accumulation, compaction, and lithification of mineral and organic particles over geological timescales.

Used in geological studies, structural analysis, and as a natural record of Earth history.

Layered rock sequences often contain fossils and provide a chronological timeline of past environmental conditions.

Identified by visible strata and bedding planes exposed along cliffs or roadcuts; common worldwide in sedimentary basins.

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

Sandstone or Siltstone

Arenite (if sandstone)

Fossiliferous Sedimentary Rock

Sedimentary limestone with invertebrate fossil imprint

Shale

Fissile Sedimentary Rock

Sandstone

Arenite

Shale

Clastic sedimentary rock