sedimentary
Quartz pebble
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness of 7, white or clear color, vitreous luster, hexagonal crystal system, conchoidal fracture.
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Physical properties
Mohs hardness of 7, white or clear color, vitreous luster, hexagonal crystal system, conchoidal fracture.
Formation & geological history
Formed through the mechanical weathering and water transport of preexisting quartz-rich rocks over millions of years.
Uses & applications
Used in landscaping, decorative gravel, aquarium substrates, and as a raw material for glass manufacturing.
Geological facts
Quartz is one of the most abundant and durable minerals on Earth's continental crust, highly resistant to chemical weathering.
Field identification & locations
Found globally in riverbeds, beaches, and sedimentary deposits; easily identified by its high hardness and lack of cleavage.
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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