sedimentary
Crescent Pebble
Fluviatile Quartzite Pebble
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, gray color, dull to vitreous luster, cryptocrystalline structure, no cleavage, and a specific gravity around 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, gray color, dull to vitreous luster, cryptocrystalline structure, no cleavage, and a specific gravity around 2.65.
Formation & geological history
Formed through prolonged water transport and mechanical weathering in riverbeds or marine environments, rounding hard parent rock over thousands to millions of years.
Uses & applications
Used primarily as a decorative collector's piece or a natural sculpture due to its unusual crescent shape.
Geological facts
Naturally tumbled stones shaped into distinct geometric forms like crescents are exceptionally rare and highly sought after by rockhounds.
Field identification & locations
Found easily in stream beds, river gravel bars, and beaches, identifiable by its smooth water-worn surface and unique curved morphology.
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