sedimentary
Quartz Gravel
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, variable colors including white, grey, and clear, vitreous luster, and conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, variable colors including white, grey, and clear, vitreous luster, and conchoidal fracture.
Formation & geological history
Formed through the weathering and erosion of quartz-rich rocks, then rounded by water transport in rivers or beaches.
Uses & applications
Used widely in landscaping, construction aggregate, and concrete production.
Geological facts
Quartz is one of the most abundant and durable minerals on Earth's continental crust, resisting chemical weathering.
Field identification & locations
Easily identified by its high hardness, inability to be scratched by steel, and lack of cleavage.
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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