sedimentary
Sandstone
Sedimentary Rock (Quartz arenite)
AI-generated identification · may be incorrectHardness is 6 to 7 on the Mohs scale depending on cementation. Color ranges from tan, yellow, and red to brown, with a dull or earthy luster. Composed primarily of quartz grains with fine-grained texture.
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Physical properties
Hardness is 6 to 7 on the Mohs scale depending on cementation. Color ranges from tan, yellow, and red to brown, with a dull or earthy luster. Composed primarily of quartz grains with fine-grained texture.
Formation & geological history
Formed through the accumulation, compaction, and cementation of mineral particles or rock fragments, typically sand-sized, in marine, desert, or river environments over millions of years.
Uses & applications
Widely used as a construction material for building stone, paving, and flagstones, as well as in industrial applications like glassmaking.
Geological facts
Sandstone is porous and permeable, making it an excellent natural reservoir rock for groundwater, petroleum, and natural gas deposits.
Field identification & locations
Easily identified in the field by its distinct gritty texture like sandpaper and visible sand grains. Found globally in sedimentary basins and geological formations.
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Fossiliferous Sedimentary Rock
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Shale
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