sedimentary
Quartz Pebble
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically white, clear, or greyish with vitreous luster, conchoidal fracture, and specific gravity around 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, typically white, clear, or greyish with 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 larger silicate rocks, accumulating in riverbeds and beaches over millions of years.
Uses & applications
Used in landscaping, decorative gravel, tumbling, and as a raw material for silicon production.
Geological facts
Quartz is one of the most abundant minerals in Earth's continental crust and is exceptionally resistant to chemical weathering.
Field identification & locations
Identified by its high hardness (scratches glass) and lack of cleavage, commonly found in stream gravels and marine shorelines worldwide.
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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