sedimentary
Sandstone
Clastic Sedimentary Rock
AI-generated identification · may be incorrectHardness varies from 6 to 7 depending on cement; colors range from tan, brown, yellow to red; dull luster; granular texture composed mostly of quartz grains.
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Physical properties
Hardness varies from 6 to 7 depending on cement; colors range from tan, brown, yellow to red; dull luster; granular texture composed mostly of quartz grains.
Formation & geological history
Formed by 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 material, for paving stones, and in the manufacturing of glass and sandpaper.
Geological facts
Sandstone often preserves ancient ripple marks and fossil tracks, providing vital clues about prehistoric environments.
Field identification & locations
Easily identified by its gritty, sandpaper-like texture and visible sand grains; commonly found worldwide in sedimentary basins and escarpments.
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