sedimentary

Small rounded pebble

Indeterminate lithic clast; likely weathered quartzite, sandstone, or chert

AI-generated identification · may be incorrect

Smooth, rounded, brown-gray, and dull to slightly earthy; grain size and mineral composition are not resolvable from the image. Hardness is likely about Mohs 6–7 if quartz-rich, but cannot be measured visually.

Identified August 25, 2026More sedimentary →

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Physical properties

Formation & geological history

Likely a naturally weathered and water-transported pebble formed from an older rock; its geological age and precise formation environment cannot be determined from the photograph.

Uses & applications

Primarily a decorative or collected specimen; value is negligible unless it has unusual provenance, fossil content, or distinctive mineralogy.

Geological facts

Rounding and surface smoothing generally indicate abrasion during stream, beach, or glacial transport.

Field identification & locations

Field identification requires examining grain texture, streak, hardness, and reaction to dilute acid; a close-up and scratch test would help distinguish quartzite, sandstone, chert, or another rock. Commonly found in riverbeds, beaches, and glacial deposits.