sedimentary
Sandstone
Arenite
AI-generated identification · may be incorrectHardness 6-7 (if quartz), tan/brown color, dull luster, granular texture made of sand-sized grains, variable specific gravity around 2.2-2.8.
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Physical properties
Hardness 6-7 (if quartz), tan/brown color, dull luster, granular texture made of sand-sized grains, variable specific gravity around 2.2-2.8.
Formation & geological history
Formed by the accumulation and cementation of sand grains, typically in marine, fluvial, or desert environments over millions of years.
Uses & applications
Commonly used in construction as a building material, in landscaping, and historically for grindstones.
Geological facts
Sandstone often preserves sedimentary structures like cross-bedding and ripple marks, providing clues to past environments.
Field identification & locations
Identified by its gritty, sand-paper-like texture; easily found in sedimentary basins worldwide.
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