Rock Identifier
Red Sandstone (Quartzose Arenite) — sedimentary
sedimentary

Red Sandstone

Quartzose Arenite

AI-generated identification · may be incorrect

Hardness of 6-7 on Mohs scale. Colors range from pink to dark reddish-brown due to iron oxide cement. Luster is typically dull or earthy with a clastic texture.

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Physical properties

Hardness of 6-7 on Mohs scale. Colors range from pink to dark reddish-brown due to iron oxide cement. Luster is typically dull or earthy with a clastic texture.

Formation & geological history

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

Uses & applications

Widely used as a durable building and paving material in construction, as well as an aggregate in landscaping.

Geological facts

The distinctive red color comes from iron oxide (hematite) coating the sand grains. It frequently preserves ancient ripple marks and fossilized footprints.

Field identification & locations

Easily identified by its gritty, sandy texture and distinct red-brown coloration. Common worldwide in regions with ancient arid deposits.