sedimentary
Sandstone
Quartz Arenite / Clastic Sedimentary Rock
AI-generated identification · may be incorrectHardness of 6-7 on the Mohs scale, tan to reddish-brown color, dull or earthy luster, granular crystal structure with quartz grains, and a specific gravity of 2.2-2.8.
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Physical properties
Hardness of 6-7 on the Mohs scale, tan to reddish-brown color, dull or earthy luster, granular crystal structure with quartz grains, and a specific gravity of 2.2-2.8.
Formation & geological history
Formed through the accumulation, compaction, and cementation of mineral particles or rock fragments, predominantly quartz, in marine, desert, or river environments over millions of years.
Uses & applications
Widely used in construction as a building and paving material, for decorative landscaping, and as a reservoir rock for groundwater and petroleum.
Geological facts
Sandstone is responsible for forming many of the world's most iconic geological landmarks and monuments, such as the structures in Petra and Zion National Park.
Field identification & locations
Easily identified in the field by its visible sand-grained texture and gritty feel. Common worldwide wherever ancient deserts or shorelines once existed.
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