Rock Identifier
Red Sandstone (Sedimentary Clastic Rock (Quartz Arenite)) — sedimentary
sedimentary

Red Sandstone

Sedimentary Clastic Rock (Quartz Arenite)

AI-generated identification · may be incorrect

Hardness of 6-7 on Mohs scale due to quartz content. Displays a reddish-brown color caused by iron oxide cement, with a dull to vitreous luster and granular texture.

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Physical properties

Hardness of 6-7 on Mohs scale due to quartz content. Displays a reddish-brown color caused by iron oxide cement, with a dull to vitreous luster and granular texture.

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

Widely used as a dimensional building stone, in masonry, paving, and decorative aggregate for landscaping.

Geological facts

Red sandstone is famous for forming dramatic geological landmarks like Zion National Park and Uluru in Australia.

Field identification & locations

Easily identified by its visible sand grains and distinct red-brown coloration from iron staining; found globally in sedimentary basins.