sedimentary
River Pebble
Quartzite or mixed lithology rock
AI-generated identification · may be incorrectHardness varies from 6 to 7 on the Mohs scale depending on mineral content. Features a smooth, rounded texture, dull to vitreous luster, and variable earth-tone coloration.
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Physical properties
Hardness varies from 6 to 7 on the Mohs scale depending on mineral content. Features a smooth, rounded texture, dull to vitreous luster, and variable earth-tone coloration.
Formation & geological history
Formed through the continuous water-driven erosion and mechanical weathering of larger parent rocks in riverbeds over thousands to millions of years.
Uses & applications
Used primarily in landscaping, garden decoration, pathways, and occasionally in construction aggregates.
Geological facts
The smooth, rounded shape is the result of constant abrasion against other rocks and sand particles transported by flowing water.
Field identification & locations
Identified by its water-worn, smooth exterior and typically found in active or ancient riverbeds, stream banks, and beaches worldwide.
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