sedimentary
Sandstone (Arkose or Lithic Sandstone)
Arenite / Clastic Sedimentary Rock
AI-generated identification · may be incorrectMohs hardness 6-7 (quartz grains); grainy texture, dull earthy luster, light grey/tan color with brownish iron staining.
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Physical properties
Mohs hardness 6-7 (quartz grains); grainy texture, dull earthy luster, light grey/tan color with brownish iron staining.
Formation & geological history
Formed through the compaction and cementation of mineral particles and rock fragments, commonly in riverbeds, deltas, or alluvial fans.
Uses & applications
Commonly used as building stone, aggregate, and road base; major reservoir rock for petroleum and groundwater.
Geological facts
Sandstone can preserve fossilized footprints, ripples, and cross-bedding from ancient water currents or wind dunes.
Field identification & locations
Identified by a gritty, sandpaper-like feel and visible granular clasts bound by a fine matrix; found in sedimentary basins worldwide.
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