sedimentary
Sandstone
Sedimentary Clastic Rock
AI-generated identification · may be incorrectHardness varies from 6 to 7 depending on cement; colors range from tan, brown, yellow to red; dull luster; composed primarily of quartz and feldspar grains.
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Physical properties
Hardness varies from 6 to 7 depending on cement; colors range from tan, brown, yellow to red; dull luster; composed primarily of quartz and feldspar grains.
Formation & geological history
Formed from the accumulation, compaction, and cementation of mineral particles or rock fragments, typically in desert, river, or beach environments.
Uses & applications
Widely used in construction as building stone, paving, and dimension stone, as well as an aquifer for groundwater.
Geological facts
Sandstone formations often preserve ancient ripple marks and desert dune cross-bedding from millions of years ago.
Field identification & locations
Identify by its gritty texture like sandpaper and visible sand grains; found globally in sedimentary basins and escarpments.
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