mineral

White pebble, likely milky quartz or quartzite

Undetermined; probable quartz (SiO₂) or quartz-rich quartzite

AI-generated identification · may be incorrect

Small, rounded, opaque white pebble with a matte to faintly waxy surface. If quartz-rich, hardness is about 7 Mohs and the crystal structure is trigonal; the image does not show enough detail to confirm composition or cleavage.

Identified September 26, 2026More mineral →

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Physical properties

Formation & geological history

Likely naturally rounded by water or abrasion from a quartz-rich source; its geological age and exact formation environment cannot be determined from the image.

Uses & applications

Could be used for collecting, crafts, or decorative gravel; no specialized use is evident.

Geological facts

White pebbles can also be marble, calcite, or other pale stones, so appearance alone is not diagnostic.

Field identification & locations

Check hardness and streak, and inspect for grain boundaries or cleavage; quartz resists scratching by a steel knife, while calcite fizzes in dilute acid. Quartz-rich pebbles are common in riverbeds and beaches.