sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, white to cream color, vitreous luster, trigonal crystal system, conchoidal fracture, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, white to cream color, vitreous luster, trigonal crystal system, conchoidal fracture, specific gravity of 2.65.
Formation & geological history
Formed through intense weathering and aqueous transport of parent igneous or metamorphic rocks, rounding over millions of years in riverbeds or marine environments.
Uses & applications
Used in landscaping, decorative stone, abrasive manufacturing, and aquarium gravel.
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, inability to be scratched by steel, and smooth, water-worn shape. Commonly found in riverbeds, beaches, and conglomerate rock formations worldwide.
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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