sedimentary
Red Sandstone
Quartzose Sandstone (SiO2)
AI-generated identification · may be incorrectHardness of 6-7 on the Mohs scale, reddish-brown color due to iron oxide cement, dull to vitreous luster, and clastic texture.
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Physical properties
Hardness of 6-7 on the Mohs scale, reddish-brown color due to iron oxide cement, dull to vitreous luster, and clastic texture.
Formation & geological history
Formed from 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 in construction as building stone, paving material, and decorative aggregate.
Geological facts
The red coloration comes from hematite or goethite acting as a natural cement binding the quartz grains together.
Field identification & locations
Easily identified by its gritty texture and visible sand grains; commonly found in ancient desert deposits and riverbeds worldwide.
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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