sedimentary
Sandstone
Clastic Sedimentary Rock
AI-generated identification · may be incorrectHardness varies from 6 to 7 on the Mohs scale depending on cementation; colors include tan, brown, yellow, red, grey, and pink; dull to earthy luster; quartz grain crystal structure.
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Physical properties
Hardness varies from 6 to 7 on the Mohs scale depending on cementation; colors include tan, brown, yellow, red, grey, and pink; dull to earthy luster; quartz grain crystal structure.
Formation & geological history
Formed by the accumulation, compaction, and cementation of mineral particles or rock fragments, chiefly quartz and feldspar, in marine, desert, or river environments over millions of years.
Uses & applications
Widely used in construction as building material, paving stones, and for manufacturing glass and abrasives.
Geological facts
Sandstone forms many of the world's most famous and dramatic geological formations, including canyons and monuments in the American Southwest.
Field identification & locations
Easily identified by its gritty texture resembling sandpaper and visible mineral grains; commonly found globally in ancient desert and river deposits.
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