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

Quartz Pebble

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Mohs hardness 7, translucent milky-white color, vitreous to waxy luster with frosted beach-worn surface, trigonal crystal system, conchoidal fracture.

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Physical properties

Mohs hardness 7, translucent milky-white color, vitreous to waxy luster with frosted beach-worn surface, trigonal crystal system, conchoidal fracture.

Formation & geological history

Formed in hydrothermal veins or igneous pegmatites, then eroded, transported, and water-worn smooth by river or wave action over thousands of years.

Uses & applications

Used widely in ornamental crafts, jewelry, aggregate production, and silica extraction for glass and electronics.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Tumbling by water and sand creates its distinctive frosty, rounded texture.

Field identification & locations

Identify by its hardness (scratches glass and steel) and translucent cloudy appearance. Common along beaches, riverbeds, and gravel deposits worldwide.