sedimentary
Sandstone
Clastic sedimentary rock
Hardness: 6-7 (depending on cement), Color: Tan, brown, yellow, red, gray, Luster: Dull to earthy, Crystal structure: Quartz grains cemented together, Specific Gravity: 2.2-2.8
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Physical properties
Hardness: 6-7 (depending on cement), Color: Tan, brown, yellow, red, gray, Luster: Dull to earthy, Crystal structure: Quartz grains cemented together, Specific Gravity: 2.2-2.8
Formation & geological history
Formed by the accumulation, compaction, and cementation of mineral particles or rock fragments, chiefly quartz, in environments such as beaches, deserts, and rivers.
Uses & applications
Used extensively in construction, as building stone, paving material, and in the manufacture of glass and abrasives.
Geological facts
Sandstone formations often display distinct layers called bedding planes, which provide valuable records of ancient geological environments and wind or water currents.
Field identification & locations
Easily identified by its gritty, sand-paper-like texture and visible mineral grains. Found worldwide in sedimentary basins and geological exposures.
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Arenite (if sandstone)
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Quartz pebble
Silicon dioxide (SiO2)
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Generic Pebble / Rock Fragment
Lithic fragment / Weathered rock
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Fossiliferous Concretion
Septarian Concretion containing Brachiopods/Crinoids
fossil
Sedimentary Sandstone
Arenite (Sedimentary Rock)
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Banded Siltstone / Mudstone Pebble
Siltstone / Argillite
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