sedimentary
Sandstone
Arenite (SiO2 based)
AI-generated identification · may be incorrectHardness: 6-7 (Mohs scale), Color: tan, grey, or brownish, Luster: dull to earthy, Crystal structure: clastic texture with sand-sized grains, Cleavage: none, Specific gravity: 2.2-2.8
Identified More sedimentary →
Explore Sandstone in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 6-7 (Mohs scale), Color: tan, grey, or brownish, Luster: dull to earthy, Crystal structure: clastic texture with sand-sized grains, Cleavage: none, Specific gravity: 2.2-2.8
Formation & geological history
Formed by the accumulation and lithification of sand-sized mineral particles or rock fragments, typically in riverbeds, deltas, or beaches over millions of years (Phanerozoic eon)
Uses & applications
Widely used in the construction industry as building material, road base, abrasive, and in glass manufacturing if the quartz content is high
Geological facts
Sandstone is highly porous and often acts as a natural aquifer or a reservoir for petroleum and natural gas
Field identification & locations
Identified in the field by its distinct gritty feel like sandpaper; common in sedimentary basins worldwide; check for bedding planes or layers
More like this
Other sedimentary specimens
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Fossiliferous Concretion
Septarian Concretion containing Brachiopods/Crinoids
fossil
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Generic Pebble / Rock Fragment
Lithic fragment / Weathered rock
sedimentary
Sedimentary Sandstone
Arenite (Sedimentary Rock)
sedimentary