mineral

Likely white quartz or quartz-rich pebble

Quartz (silicon dioxide, SiO₂), possibly a small polished/tumbled specimen

AI-generated identification · may be incorrect

Appears small, rounded, white to translucent, with a dull-to-vitreous luster and possible granular inclusions. Quartz has Mohs hardness 7, no cleavage, conchoidal fracture, trigonal crystal structure, and specific gravity about 2.65.

Identified August 15, 2026More mineral →

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Physical properties

Formation & geological history

Quartz commonly crystallizes from silica-rich hydrothermal fluids, igneous melts, or sedimentary deposits; its exact geological age and formation cannot be determined from the photograph.

Uses & applications

Used in glass, ceramics, electronics, abrasives, countertops, and ornamental objects; attractive clear or patterned pieces may be sold as inexpensive specimens.

Geological facts

The visible dark lines or inclusions may reflect mineral veining, surface markings, or a carved design rather than natural crystal structure.

Field identification & locations

Common in veins, stream gravels, beaches, and weathered rocks worldwide. Confirm with a hardness test: it should scratch ordinary glass but not be scratched by a steel knife; avoid testing valuable pieces.