sedimentary
River Pebble
Polished Siliceous Rock
AI-generated identification · may be incorrectHardness 7 on Mohs scale, smooth rounded texture, dull to vitreous luster, cryptocrystalline structure.
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Physical properties
Hardness 7 on Mohs scale, smooth rounded texture, dull to vitreous luster, cryptocrystalline structure.
Formation & geological history
Formed through the mechanical weathering and water transport of parent rocks in riverbeds over thousands to millions of years.
Uses & applications
Used in landscaping, decorative stone paving, aquarium substrates, and masonry.
Geological facts
Continuous abrasion in fast-flowing water creates the smooth, rounded shape characteristic of river stones.
Field identification & locations
Found abundantly along riverbeds, streams, and beaches globally; identified by its smooth, water-worn exterior.
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