sedimentary
Sandstone
Arenite
Mohs hardness: 6-7, Color: tan, yellow, or buff, Luster: dull to earthy, Crystal structure: clastic (sand-sized grains), Cleavage: none, Specific gravity: 2.2-2.8
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Physical properties
Mohs hardness: 6-7, Color: tan, yellow, or buff, Luster: dull to earthy, Crystal structure: clastic (sand-sized grains), Cleavage: none, Specific gravity: 2.2-2.8
Formation & geological history
Formed from the accumulation and cementation of sand-sized grains of mineral, rock, or organic material over millions of years, typically in desert, river, or coastal environments.
Uses & applications
Used extensively in construction as a building material, road base, pavers, and as decorative stone in landscaping or interior design.
Geological facts
Sandstone can act as a natural aquifer or reservoir for petroleum and natural gas due to its high porosity and permeability.
Field identification & locations
Identified in the field by its gritty texture (feels like sandpaper) and visible sand grains. Found globally in vast sedimentary basins.
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