sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically white or translucent, vitreous luster, conchoidal fracture, and no cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, typically white or translucent, vitreous luster, conchoidal fracture, and no cleavage.
Formation & geological history
Formed through weathering and water erosion of primary igneous or metamorphic rocks, rounding during river or beach transport.
Uses & applications
Used in landscaping, decorative gravel, glassmaking, and abrasive manufacturing.
Geological facts
Quartz is one of the most abundant minerals on Earth and resists chemical weathering exceptionally well.
Field identification & locations
Easily identified by its high hardness (scratches glass) and lack of cleavage; found worldwide in riverbeds and beaches.
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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