sedimentary

Sandstone

Sedimentary Rock (Quartz arenite)

Hardness 6-7 on Mohs scale, typically brown, tan, or reddish, dull luster, clastic texture with visible sand grains.

Identified November 13, 2026More sedimentary →

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Physical properties

Hardness 6-7 on Mohs scale, typically brown, tan, or reddish, dull luster, clastic texture with visible sand grains.

Formed from the accumulation, compaction, and cementation of mineral particles or rock fragments, predominantly quartz.

Widely used in construction as building stone, paving material, and for manufacturing glass.

Sandstone formations can act as excellent aquifers for groundwater storage due to their porous nature.

Identified by its gritty texture like sandpaper and visible sand grains; found worldwide in deserts and ancient riverbeds.

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