sedimentary
Quartz pebble
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, white to translucent color, vitreous luster, and conchoidal fracture without distinct cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, white to translucent color, vitreous luster, and conchoidal fracture without distinct cleavage.
Formation & geological history
Formed through the weathering and prolonged aqueous transportation of parent igneous or metamorphic rocks, rounding sharp edges over millions of years.
Uses & applications
Used in landscaping, decorative gravel, abrasive manufacture, and as aggregate in construction materials.
Geological facts
Quartz is one of the most abundant and chemically resistant minerals on Earth's continental crust.
Field identification & locations
Found worldwide in stream beds, beaches, and alluvial deposits; identified easily by its high hardness and lack of reaction to acid.
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