
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, white to clear color, vitreous luster, trigonal crystal system, conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, white to clear color, vitreous luster, trigonal crystal system, conchoidal fracture.
Formation & geological history
Formed via crystallization from silica-rich solutions or cooling magma, later weathered and rounded by water transport in sedimentary environments.
Uses & applications
Used in landscaping, decorative gravel, glassmaking, and abrasive manufacturing.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits strong piezoelectric properties.
Field identification & locations
Identified by its high hardness, inability to be scratched by steel, and lack of cleavage; found globally in rivers, beaches, and soils.