sedimentary
Quartz pebble
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, and no cleavage with conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, and no cleavage with conchoidal fracture.
Formation & geological history
Formed through the accumulation and prolonged mechanical weathering of quartz grains in sedimentary environments like rivers and beaches.
Uses & applications
Used in landscaping, construction aggregates, glass manufacturing, and as tumbled stones for jewelry.
Geological facts
Quartz is one of the most abundant minerals in the Earth's continental crust and is exceptionally resistant to weathering.
Field identification & locations
Identified by its high hardness which scratches glass and its inability to effervesce in acid; found worldwide in gravel beds and beaches.
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