sedimentary
Sandstone
Sedimentary Clastic Rock
AI-generated identification · may be incorrectHardness of 6-7 on Mohs scale, typically brown, tan, or reddish, dull to earthy luster, composed of cemented mineral grains.
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Physical properties
Hardness of 6-7 on Mohs scale, typically brown, tan, or reddish, dull to earthy luster, composed of cemented mineral grains.
Formation & geological history
Formed from the accumulation, compaction, and cementation of mineral particles or rock fragments, predominantly quartz.
Uses & applications
Widely used in construction as a building material, dimension stone, and for paving.
Geological facts
Famous monuments worldwide, including Petra in Jordan, are carved directly out of massive sandstone formations.
Field identification & locations
Easily identified by its visible sandy texture and layered bedding planes, found globally in deserts and river basins.
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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
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Sandstone
Arenite
sedimentary
Shale
Shale (clastic sedimentary rock)
sedimentary
Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
sedimentary