sedimentary
Sandstone (with weathering rind)
Arenite (primarily SiO2 with iron oxide cementing)
AI-generated identification · may be incorrectHardness 6-7 on Mohs scale; dull, earthy luster with granular texture; tan-pink interior surrounded by a lighter weathering rind.
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Physical properties
Hardness 6-7 on Mohs scale; dull, earthy luster with granular texture; tan-pink interior surrounded by a lighter weathering rind.
Formation & geological history
Formed by the deposition, compaction, and cementation of mineral or rock grains (primarily quartz) in fluvial or desert environments.
Uses & applications
Commonly used in construction, architectural paving, dimension stone, and landscaping aggregate.
Geological facts
Weathering rinds develop when outer surfaces interact with moisture and oxygen, leaching or altering minerals relative to the protected core.
Field identification & locations
Identifiable by its gritty sandpaper texture and visible distinct chemical weathering cortex along the broken perimeter.
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Sandstone or Siltstone
Arenite (if sandstone)
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