sedimentary
Quartz pebble
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, white to translucent color, vitreous luster, conchoidal fracture, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, white to translucent color, vitreous luster, conchoidal fracture, specific gravity of 2.65.
Formation & geological history
Formed through the mechanical weathering and fluvial transport of parent quartz rocks, typically in riverbeds or coastal environments.
Uses & applications
Used in landscaping, decorative aggregates, and occasionally tumbled for lapidary crafts.
Geological facts
Quartz is one of the most abundant and durable minerals on Earth's continental crust, highly resistant to chemical weathering.
Field identification & locations
Identified by its high hardness (scratches glass), lack of cleavage, and smooth, rounded shape from water tumbling. Found worldwide in stream beds and gravel deposits.
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