Rock Identifier
Sandstone (Clastic Sedimentary Rock) — sedimentary
sedimentary

Sandstone

Clastic Sedimentary Rock

AI-generated identification · may be incorrect

Hardness of 6 to 7 on Mohs scale depending on cementation, typically tan, brown, or reddish, dull earthy luster, granular texture composed mostly of quartz grains.

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Physical properties

Hardness of 6 to 7 on Mohs scale depending on cementation, typically tan, brown, or reddish, dull earthy luster, granular texture composed mostly of quartz grains.

Formation & geological history

Formed from 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 for building facades, paving stones, and historically for grinding wheels and sharpening stones.

Geological facts

Sandstone formations often create dramatic landscape features like arches and cliffs due to differential weathering of varying cement types.

Field identification & locations

Easily identified in the field by its visible sand grains and gritty texture; very common throughout sedimentary basins globally and consistent with regional geology.