sedimentary
Sandstone
Clastic Sedimentary Rock
AI-generated identification · may be incorrectHardness of 6-7 on Mohs scale due to quartz content; varies in color from white and tan to red and brown; dull to earthy luster.
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Physical properties
Hardness of 6-7 on Mohs scale due to quartz content; varies in color from white and tan to red and brown; dull to earthy luster.
Formation & geological history
Formed from the accumulation, compaction, and cementation of mineral particles or rock fragments, predominantly quartz, over millions of years.
Uses & applications
Widely used as a construction material for building, paving, and monuments, as well as an aquifer reservoir rock.
Geological facts
Sandstone often preserves ancient ripple marks and fossilized footprints, providing vital clues about prehistoric environments.
Field identification & locations
Identified by its gritty texture, visible sand grains, and layered bedding planes. Common worldwide in deserts, riverbeds, and ancient marine deposits.
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