sedimentary
Sandstone
Sedimentary Rock (Quartz Sandstone)
Hardness of 6 to 7 on the Mohs scale, typically brown, tan, yellow, or reddish in color, dull or earthy luster, clastic texture composed mostly of quartz grains, and specific gravity around 2.2 to 2.8.
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Physical properties
Hardness of 6 to 7 on the Mohs scale, typically brown, tan, yellow, or reddish in color, dull or earthy luster, clastic texture composed mostly of quartz grains, and specific gravity around 2.2 to 2.8.
Formation & geological history
Formed by the accumulation, compaction, and cementation of mineral particles or rock fragments, most commonly quartz and feldspar, in environments like deserts, rivers, and beaches over millions of years.
Uses & applications
Widely used in construction, building facades, paving stones, flagstones, and historically for manufacturing grindstones.
Geological facts
Sandstone is porous and acts as a major reservoir for groundwater and petroleum. Many famous monuments and temples around the world are carved from sandstone due to its workability.
Field identification & locations
Identified by its sandy, grainy texture and visible mineral grains. Commonly found worldwide in sedimentary basins, cliffs, and desert regions.
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Arenite (if sandstone)
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Quartz pebble
Silicon dioxide (SiO2)
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Fossiliferous Concretion
Septarian Concretion containing Brachiopods/Crinoids
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Generic Pebble / Rock Fragment
Lithic fragment / Weathered rock
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Sedimentary Sandstone
Arenite (Sedimentary Rock)
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Banded Siltstone / Mudstone Pebble
Siltstone / Argillite
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