sedimentary

Rounded tan pebble

Unidentified fine-grained rock; the image does not show enough detail for a reliable species-level identification.

AI-generated identification · may be incorrect

Small, rounded, dull tan to yellow-brown specimen with a fine-grained, apparently granular surface. Hardness, mineral composition, and internal structure cannot be determined from the image.

Identified September 23, 2026More sedimentary →

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Physical properties

Small, rounded, dull tan to yellow-brown specimen with a fine-grained, apparently granular surface. Hardness, mineral composition, and internal structure cannot be determined from the image.

Formation & geological history

Likely naturally rounded by transport in water or abrasion, but its parent rock and geological age are indeterminate from appearance alone.

Uses & applications

Primarily a natural or collected pebble; no specific industrial or jewelry use can be identified.

Geological facts

Color and shape alone are not diagnostic; a closer view, fresh surface, and hardness or acid tests would help distinguish rock types.

Field identification & locations

The smooth, rounded outline suggests abrasion, but this could be a range of rocks or even a mineral nodule. Common stream or beach pebbles generally have little monetary value.