sedimentary
Sandstone
Clastic Sedimentary Rock
AI-generated identification · may be incorrectHardness varies from 6 to 7 on the Mohs scale depending on cementation; typically tan, brown, yellow, or red; dull to earthy luster; composed of cemented mineral particles or rock grains.
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Physical properties
Hardness varies from 6 to 7 on the Mohs scale depending on cementation; typically tan, brown, yellow, or red; dull to earthy luster; composed of cemented mineral particles or rock grains.
Formation & geological history
Formed through the accumulation, compaction, and cementation of mineral particles or rock fragments, predominantly quartz and feldspar, in environments like deserts, rivers, and beaches.
Uses & applications
Widely used in construction as a building material, paving stone, and for making grindstones.
Geological facts
Sandstone often preserves ancient ripple marks and cross-bedding, providing geologists with vital clues about prehistoric environments and wind or water currents.
Field identification & locations
Easily identified by its gritty, sandpaper-like texture and visible mineral grains; found worldwide in sedimentary basins and escarpments.
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