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, white to clear color, vitreous luster, trigonal crystal system, conchoidal fracture.

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Physical properties

Hardness of 7 on the Mohs scale, white to clear color, vitreous luster, trigonal crystal system, conchoidal fracture.

Formation & geological history

Formed via crystallization from silica-rich solutions or cooling magma, later weathered and rounded by water transport in sedimentary environments.

Uses & applications

Used in landscaping, decorative gravel, glassmaking, and abrasive manufacturing.

Geological facts

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

Field identification & locations

Identified by its high hardness, inability to be scratched by steel, and lack of cleavage; found globally in rivers, beaches, and soils.