Rock Identifier
Red Sandstone (Quartzose Sandstone) — sedimentary
sedimentary

Red Sandstone

Quartzose Sandstone

AI-generated identification · may be incorrect

Hardness 6-7 on Mohs scale, reddish-brown color due to iron oxide cement, dull luster, clastic texture with visible sand grains.

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Physical properties

Hardness 6-7 on Mohs scale, reddish-brown color due to iron oxide cement, dull luster, clastic texture with visible sand grains.

Formation & geological history

Formed through the accumulation, compaction, and cementation of mineral particles or rock fragments, typically in desert or river environments over millions of years.

Uses & applications

Commonly used in building construction, paving, decorative stone, and masonry.

Geological facts

The red color comes from hematite coating the individual quartz grains. Many ancient monuments and buildings are constructed from red sandstone.

Field identification & locations

Identified by its visible sand grains, gritty texture, and sedimentary layering. Found worldwide in ancient desert and fluvial deposits.