sedimentary

Small rounded pebble

Unidentified lithic pebble; composition cannot be determined from the image

AI-generated identification · may be incorrect

Tan-brown, rounded, and dull to slightly earthy in luster, with darker specks. Hardness, mineral composition, and crystal structure are not identifiable from the photograph.

Identified October 15, 2026More sedimentary →

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Physical properties

Tan-brown, rounded, and dull to slightly earthy in luster, with darker specks. Hardness, mineral composition, and crystal structure are not identifiable from the photograph.

Formation & geological history

Likely a naturally weathered and water-worn fragment of rock; its source rock and geological age cannot be established visually.

Uses & applications

Primarily a curiosity or collectible; similar pebbles are used in crafts and landscaping.

Geological facts

Its smooth, rounded shape suggests abrasion during transport by water or other sediment-moving processes.

Field identification & locations

Examine a fresh surface, hardness, streak, and reaction to dilute acid to identify its composition; a clearer close-up would help. Rounded pebbles occur in riverbeds, beaches, and glacial deposits.