Rock Identifier
Quartz Pebble (Silicon Dioxide (SiO2)) — mineral
mineral

Quartz Pebble

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, grayish-white color, vitreous luster, conchoidal fracture, and specific gravity around 2.65.

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Physical properties

Hardness of 7 on the Mohs scale, grayish-white color, vitreous luster, conchoidal fracture, and specific gravity around 2.65.

Formation & geological history

Formed through the weathering and prolonged aqueous transportation of parent igneous or metamorphic rocks, smoothing rough edges into a rounded pebble.

Uses & applications

Used in landscaping, decorative stone displays, tumbling, and as a raw material source for silicon and glass manufacturing.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties.

Field identification & locations

Identified by its high hardness (scratches glass), lack of cleavage, and smooth water-worn shape. Found worldwide in riverbeds and beaches.