mineral

Light-colored quartz-rich pebble

Likely quartz (silicon dioxide, SiO₂), possibly a weathered quartzite fragment

AI-generated identification · may be incorrect

Cream-white, dull to subtly glassy luster, irregular granular texture, and no obvious cleavage; quartz hardness is Mohs 7, while quartzite is similarly hard and tough. Exact identification is limited by the photograph.

Identified September 5, 2026More mineral →

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Physical properties

Formation & geological history

Likely a naturally weathered and rounded fragment derived from quartz vein material or quartzite; such material can range from ancient metamorphic rocks to younger sedimentary deposits. The pebble’s surface appears abraded by transport or handling.

Uses & applications

Common quartz pebbles have little commercial value, though quartz is used in glass, ceramics, electronics, and abrasives; quartzite is used as aggregate, building stone, and countertops.

Geological facts

Quartz is one of Earth’s most abundant minerals and commonly survives weathering because of its high hardness and chemical resistance.

Field identification & locations

Look for glassy luster, hardness sufficient to scratch steel or glass, and absence of cleavage; a streak test is white. Common in river gravels, beaches, soils, and quartz veins worldwide.