mineral
Quartz pebble
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to translucent white or grey color, vitreous luster, trigonal crystal system, conchoidal fracture with no true cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, transparent to translucent white or grey color, vitreous luster, trigonal crystal system, conchoidal fracture with no true cleavage.
Formation & geological history
Formed through the accumulation and rounding of weathered quartz grains in sedimentary environments or riverbeds over geological timescales.
Uses & applications
Commonly used in landscaping, decorative gravel, tumbling, and as a raw material for glassmaking or silica extraction.
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 globally in streams, beaches, and gravel deposits.
