mineral

White quartz pebble

Quartz (SiO₂), likely massive milky quartz

AI-generated identification · may be incorrect

Opaque white to cream with slight peach staining; dull to vitreous luster, no visible cleavage, uneven fracture, Mohs hardness 7, trigonal crystal structure. Rounded, water-worn surface.

Identified September 26, 2026More mineral →

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Physical properties

Opaque white to cream with slight peach staining; dull to vitreous luster, no visible cleavage, uneven fracture, Mohs hardness 7, trigonal crystal structure. Rounded, water-worn surface.

Formation & geological history

Quartz-rich material weathered from an igneous or metamorphic source and rounded by transport in a stream or along a shore. Quartz formed over a wide range of geological ages; this pebble’s age and source cannot be determined from the image.

Uses & applications

Commonly used as landscaping stone, aggregate, and decorative material; attractive pieces may be collected or polished.

Geological facts

Quartz is one of Earth’s most abundant minerals and resists chemical weathering, allowing it to persist in sediments.

Field identification & locations

Look for its glassy-to-waxy appearance, lack of cleavage, and ability to scratch ordinary glass; common in streambeds and beaches worldwide. The rounded shape suggests transport, though the exact locality is unknown.