sedimentary

Small water-worn pebble, likely quartz-rich rock

Undetermined rounded lithic pebble; exact composition cannot be identified from the image

AI-generated identification · may be incorrect

Olive-brown, smooth and rounded, with a dull to slightly waxy surface. Hardness and crystal structure are not discernible visually; it may be quartz-rich (quartz is Mohs 7).

Identified October 7, 2026More sedimentary →

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Physical properties

Olive-brown, smooth and rounded, with a dull to slightly waxy surface. Hardness and crystal structure are not discernible visually; it may be quartz-rich (quartz is Mohs 7).

Formation & geological history

Rounded by abrasion during transport in a stream, on a beach, or in sediment; its source rock and geological age cannot be determined from the photo.

Uses & applications

Primarily a natural curiosity or craft/landscaping pebble; no specific industrial or gemstone use is apparent.

Geological facts

The smooth shape and muted color are consistent with prolonged water or sediment abrasion, but do not uniquely identify its mineral makeup.

Field identification & locations

A field check for hardness, streak, density, and fresh-surface appearance would help identify it; its small size and worn surface obscure diagnostic features.