sedimentary
Sandstone
Clastic Sedimentary Rock
AI-generated identification · may be incorrectHardness of 6-7 (due to quartz grains), colors range from tan and brown to red and yellow, dull to earthy luster, granular texture.
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Physical properties
Hardness of 6-7 (due to quartz grains), colors range from tan and brown to red and yellow, dull to earthy luster, granular texture.
Formation & geological history
Formed by the compaction and cementation of mineral particles or rock fragments, predominantly quartz, in desert, river, or beach environments over millions of years.
Uses & applications
Widely used in construction as a building material, dimension stone, and for paving or landscaping.
Geological facts
Sandstone formations often preserve ancient ripple marks and fossilized tracks, providing clues about past environments.
Field identification & locations
Easily identified by its gritty, sandpaper-like texture and visible sand grains; common worldwide, including sedimentary basins in the central US.
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