mineral

White beach pebbles, likely milky quartz

Probably quartz (SiO₂); exact identification is uncertain from the image

AI-generated identification · may be incorrect

Small, rounded, opaque-to-translucent white pebbles with a vitreous-to-waxy surface; quartz has Mohs hardness 7, trigonal crystal structure, no cleavage, and specific gravity about 2.65. One pebble has a dark inclusion or surface stain.

Identified September 26, 2026More mineral →

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Physical properties

Formation & geological history

Likely fragments of quartz-bearing rock rounded by wave or stream abrasion; the source rock’s age and original formation cannot be determined from the photo.

Uses & applications

Commonly used for landscaping, decorative crafts, and aquarium or garden accents; these small, ordinary pieces have little jewelry or industrial value.

Geological facts

Quartz is one of Earth’s most abundant minerals and resists weathering, allowing it to persist as rounded pebbles after softer minerals break down.

Field identification & locations

The smooth, rounded shape and white color fit milky quartz, but marble, calcite, or other pale stones cannot be ruled out visually. A scratch test can help: quartz scratches glass and is not scratched by a steel knife; avoid testing valuable specimens.