sedimentary
Sandstone
Sedimentary Clastic Rock
AI-generated identification · may be incorrectHardness of 6-7 on Mohs scale depending on cementation, typically tan to yellow-brown, dull luster, clastic or fragmental texture.
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Physical properties
Hardness of 6-7 on Mohs scale depending on cementation, typically tan to yellow-brown, dull luster, clastic or fragmental texture.
Formation & geological history
Formed from the accumulation, compaction, and cementation of mineral particles or rock fragments, mostly quartz and feldspar, in marine, lake, or desert environments.
Uses & applications
Widely used in construction as a building material, dimension stone, and for paving or landscaping.
Geological facts
Sandstone formations can be millions of years old and often preserve ancient ripple marks and fossilized tracks.
Field identification & locations
Identified by its gritty texture and visible sand-sized grains; commonly found worldwide in sedimentary basins and escarpments.
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Other sedimentary specimens
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
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Shale
Fissile Sedimentary Rock
sedimentary
Sandstone
Arenite
sedimentary
Shale
Clastic sedimentary rock
sedimentary