sedimentary
Red Sandstone
Sedimentary Clastic Rock (Quartz Arenite)
AI-generated identification · may be incorrectHardness of 6-7 on Mohs scale due to quartz content, distinct reddish-brown color from iron oxide cement, dull or earthy luster, and granular texture.
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Physical properties
Hardness of 6-7 on Mohs scale due to quartz content, distinct reddish-brown color from iron oxide cement, dull or earthy luster, and granular texture.
Formation & geological history
Formed through the accumulation, compaction, and cementation of mineral particles or rock fragments, typically in desert, river, or beach environments over millions of years.
Uses & applications
Widely used as a dimensional building stone, in paving, exterior cladding, and architectural monuments.
Geological facts
The reddish hue is caused by iron oxide (hematite) coating the sand grains. Many famous historical monuments and ancient temples are carved directly into natural sandstone cliffs.
Field identification & locations
Identified by its visible sand grains and gritty texture, commonly found in sedimentary basins worldwide. Look for bedding planes and cross-bedding structures in field outcrops.
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