sedimentary
Sandstone
Quartz Arenite
AI-generated identification · may be incorrectMohs hardness of 6-7, typically reddish-brown to tan color due to iron oxide, dull to earthy luster, quartz mineral composition, and granular texture.
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Physical properties
Mohs hardness of 6-7, typically reddish-brown to tan color due to iron oxide, dull to earthy luster, quartz mineral composition, and granular texture.
Formation & geological history
Formed through the accumulation, compaction, and cementation of mineral particles or rock fragments, predominantly quartz, in desert, river, or marine environments over millions of years.
Uses & applications
Widely used in construction as a building and paving material, dimension stone, and historically for grindstones.
Geological facts
Sandstone is porous, allowing it to act as an aquifer for groundwater storage and a reservoir for oil and natural gas.
Field identification & locations
Identify in the field by its visible sand-sized grains and gritty texture; commonly found worldwide in sedimentary basins and arid regions.
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Sandstone or Siltstone
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