sedimentary
Red Sandstone
Quartz arenite / Lithic sandstone
AI-generated identification · may be incorrectMohs hardness of 6-7, reddish-brown color due to iron oxide cement, dull luster, clastic texture with visible sand grains, no cleavage.
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Physical properties
Mohs hardness of 6-7, reddish-brown color due to iron oxide cement, dull luster, clastic texture with visible sand grains, no cleavage.
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, for paving, and in landscaping applications.
Geological facts
The distinctive red color is caused by hematite or goethite acting as a natural cement between the quartz grains.
Field identification & locations
Easily identified in the field by its granular, sandpaper-like texture and prominent sedimentary bedding layers; found globally.
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