sedimentary
Quartz Sandstone
Quartz Arenite
Hardness of 7 on the Mohs scale, predominantly beige to light brown color, vitreous to dull luster, detrital crystal structure, no distinct cleavage, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, predominantly beige to light brown color, vitreous to dull luster, detrital crystal structure, no distinct cleavage, specific gravity of 2.65.
Formation & geological history
Formed through the accumulation, compaction, and cementation of mineral particles or rock fragments, typically in desert, beach, or river environments over millions of years.
Uses & applications
Used in construction, as aggregate, in glassmaking, and as a dimension stone.
Geological facts
Sandstone formations can be very durable and form prominent geological features such as cliffs and arches in desert regions.
Field identification & locations
Easily identified by its gritty texture resembling sandpaper and visible quartz grains; commonly found worldwide in sedimentary basins.
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Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Sandstone or Siltstone
Arenite (if sandstone)
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Fossiliferous Concretion
Septarian Concretion containing Brachiopods/Crinoids
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Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Generic Pebble / Rock Fragment
Lithic fragment / Weathered rock
sedimentary
Banded Siltstone / Mudstone Pebble
Siltstone / Argillite
sedimentary