sedimentary
Sandstone
Clastic Sedimentary Rock
AI-generated identification · may be incorrectHardness varies from 6 to 7 on the Mohs scale depending on cementation. Colors range from tan, brown, yellow, red, to grey, with a dull to earthy luster and a granular texture.
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Physical properties
Hardness varies from 6 to 7 on the Mohs scale depending on cementation. Colors range from tan, brown, yellow, red, to grey, with a dull to earthy luster and a granular texture.
Formation & geological history
Formed through the accumulation, compaction, and cementation of mineral particles or rock fragments, chiefly quartz, in marine, lake, or desert environments over millions of years.
Uses & applications
Widely used in construction as a building and paving material, for decorative landscaping, and historically for grinding stones.
Geological facts
Sandstone is porous and permeable, making it an excellent natural aquifer for storing groundwater and petroleum. Famous structures like Petra and the White House are carved from or built with sandstone.
Field identification & locations
Identify in the field by its visible sand-sized grains and gritty texture. It is globally abundant in sedimentary basins and arid regions.
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