sedimentary
Quartz pebble
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on Mohs scale, white to clear color, vitreous luster, conchoidal fracture.
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Physical properties
Hardness of 7 on Mohs scale, white to clear color, vitreous luster, conchoidal fracture.
Formation & geological history
Formed via weathering and fluvial transport of larger quartz-bearing rocks over millions of years.
Uses & applications
Used in landscaping, decorative gravel, and as a raw material for glass manufacturing.
Geological facts
Quartz is one of the most abundant and durable minerals in Earth's continental crust.
Field identification & locations
Identified by high hardness, resistance to scratching by steel, and rounded river-worn shape; found globally in streambeds and beaches.
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