sedimentary
Quartz pebble
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on Mohs scale, white to off-white color, vitreous luster, conchoidal fracture, and specific gravity around 2.65.
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Physical properties
Hardness of 7 on Mohs scale, white to off-white color, vitreous luster, conchoidal fracture, and specific gravity around 2.65.
Formation & geological history
Formed through the mechanical weathering and water transport of quartz veins or granitic rocks over millions of years.
Uses & applications
Used in landscaping, decorative gravel, tumbling, and as aggregate in construction materials.
Geological facts
Quartz is one of the most abundant and durable minerals on Earth's continental crust, surviving weathering that destroys other minerals.
Field identification & locations
Identified by its high hardness, inability to be scratched by steel, and smooth water-worn shape found in riverbeds and beaches.
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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