igneous
Waterworn pebble, possibly iron-rich basalt or river stone
Unidentified lithic clast; composition cannot be determined reliably from the image
AI-generated identification · may be incorrectSmooth, rounded brown pebble with a dull to slight sheen; hardness, mineral grains, cleavage, and specific gravity cannot be established visually. Its shape suggests prolonged abrasion by water or sediment.
Identified More igneous →
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Physical properties
Smooth, rounded brown pebble with a dull to slight sheen; hardness, mineral grains, cleavage, and specific gravity cannot be established visually. Its shape suggests prolonged abrasion by water or sediment.
Formation & geological history
Likely naturally weathered and rounded during transport in a river or shoreline setting; age and precise formation history are unknown.
Uses & applications
Primarily a natural keepsake or decorative pebble; no specific industrial or jewelry use can be identified.
Geological facts
The rounded form is typical of sedimentary transport, but does not by itself reveal the pebble’s original rock type.
Field identification & locations
Field identification requires examining a fresh surface, grain size, streak, and hardness; common pebbles occur in stream beds and beaches worldwide.
