Rock Identifier
Quartz Pebble (Silicon dioxide (SiO2)) — sedimentary
sedimentary

Quartz Pebble

Silicon dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on Mohs scale, white to translucent color, vitreous luster, trigonal crystal system, and conchoidal fracture with no true cleavage.

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Physical properties

Hardness of 7 on Mohs scale, white to translucent color, vitreous luster, trigonal crystal system, and conchoidal fracture with no true cleavage.

Formation & geological history

Formed through the mechanical weathering and prolonged aqueous transportation of parent igneous or metamorphic rocks, typically found in riverbeds and beaches.

Uses & applications

Used in landscaping, decorative items, glass manufacturing, and as a durable aggregate in construction.

Geological facts

Quartz is one of the most abundant and durable minerals in Earth's continental crust, highly resistant to both chemical and mechanical weathering.

Field identification & locations

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