mineral

White quartz pebble (probable)

Quartz, silicon dioxide (SiO₂)

AI-generated identification · may be incorrect

Small rounded, opaque-to-translucent white pebble with a dull to weakly vitreous luster; likely hardness Mohs 7, no cleavage, conchoidal fracture, and specific gravity about 2.65. The smooth shape indicates water or abrasion wear, though the image cannot confirm composition.

Identified August 30, 2026More mineral →

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Physical properties

Formation & geological history

Likely derived from quartz-rich igneous or metamorphic rock and rounded by stream, beach, or sediment transport. Quartz commonly formed in veins, granitic rocks, and metamorphic environments over diverse geological ages.

Uses & applications

Common quartz pebbles are used decoratively, in landscaping, aggregate, and occasionally crafts; this small specimen has negligible commercial or jewelry value.

Geological facts

White coloration usually results from microscopic fluid inclusions, fractures, or fine grain boundaries rather than a different quartz species. Similar-looking white pebbles can also be calcite, marble, porcelain, or coated material.

Field identification & locations

Test cautiously: quartz scratches ordinary glass and is not scratched by a steel knife; calcite does not scratch glass and fizzes in dilute acid. Common worldwide, especially in river gravels, beaches, and quartz-vein areas.