sedimentary

Possible smooth beach pebble (identity uncertain)

Unidentified fine-grained siliceous pebble; possibly chert or quartzite

AI-generated identification · may be incorrect

Small, cream-colored, opaque, and smoothly rounded, with a dull to waxy surface. Hardness, crystal structure, and specific gravity cannot be determined from the photo; chert is about 6.5–7 Mohs and quartzite about 7.

Identified October 10, 2026More sedimentary →

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Physical properties

Formation & geological history

Likely rounded by water abrasion from a larger rock; the image does not reveal its composition or geological age.

Uses & applications

If confirmed as chert or quartzite, it may be collected as a decorative pebble or used as a minor aggregate; no gem value is apparent.

Geological facts

Its uniform color and egg-like shape are not diagnostic, and it could also be a non-geological object such as a seed or shell fragment.

Field identification & locations

A scratch test on an inconspicuous spot and inspection of a broken surface can help distinguish hard, silica-rich rock from organic material. The photograph alone is insufficient for reliable identification or locality.