Rock Identifier
Sandstone (Clastic Sedimentary Rock) — sedimentary
sedimentary

Sandstone

Clastic Sedimentary Rock

AI-generated identification · may be incorrect

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.

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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.

Formation & geological history

Formed through the accumulation, compaction, and cementation of mineral particles or rock fragments, predominantly quartz, over millions of years.

Uses & applications

Widely used as a construction material for building facades, paving stones, and historically for grinding wheels.

Geological facts

Sandstone layers often record ancient environments like deserts, beaches, and riverbeds, preserving ripple marks and cross-bedding.

Field identification & locations

Easily identified by its gritty, sandpaper-like texture and visible sand grains. Found globally in sedimentary basins.