sedimentary

Small brown pebble or possible shell fragment

Unidentified natural clast; the image is too small and blurred for reliable identification

AI-generated identification · may be incorrect

Appears tan-brown, smooth, and slightly glossy, but its mineral composition, hardness, crystal structure, and cleavage cannot be determined from the image.

Identified October 4, 2026More sedimentary →

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Physical properties

Appears tan-brown, smooth, and slightly glossy, but its mineral composition, hardness, crystal structure, and cleavage cannot be determined from the image.

Formation & geological history

Could be a naturally worn pebble or a fragment of shell; formation and age cannot be established visually.

Uses & applications

No specific use is identifiable; small specimens may be kept for collecting or identification.

Geological facts

The specimen is extremely small in the image, and a shell fragment or other non-rock material cannot be ruled out.

Field identification & locations

A clear close-up beside a ruler, plus tests of hardness and reaction to dilute acid, would help distinguish a pebble from shell or another object.

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