mineral
Quartz pebble
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous luster, colorless to white or pinkish, conchoidal fracture, trigonal crystal system.
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Physical properties
Hardness of 7 on the Mohs scale, vitreous luster, colorless to white or pinkish, conchoidal fracture, trigonal crystal system.
Formation & geological history
Formed from cooling magma or precipitation from hydrothermal fluids, subsequently weathered and water-worn over millions of years.
Uses & applications
Used in glassmaking, electronics, abrasives, and as decorative tumbled stones.
Geological facts
Quartz is one of the most abundant minerals in the Earth's continental crust and exhibits piezoelectric properties.
Field identification & locations
Identified by its high hardness, lack of cleavage, and resistance to chemical weathering; found globally in stream beds and beaches.
