sedimentary
Quartz Pebble with Inclusion
Silicon Dioxide (SiO2)
Hardness of 7 on the Mohs scale, whitish or translucent color with a darker mineral inclusion, vitreous luster, conchoidal fracture, specific gravity of 2.65
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Physical properties
Hardness of 7 on the Mohs scale, whitish or translucent color with a darker mineral inclusion, vitreous luster, conchoidal fracture, specific gravity of 2.65
Formation & geological history
Formed through the weathering and erosion of parent rocks, followed by transport and rounding in a high-energy aquatic or terrestrial environment, often over millions of years
Uses & applications
Used primarily as a geological specimen, in landscaping, or as tumbled decorative stones
Geological facts
Quartz is one of the most abundant and durable minerals in Earth's continental crust, able to withstand physical and chemical weathering long after other minerals have broken down
Field identification & locations
Can be identified in the field by its high hardness (scratches glass) and smooth, water-worn shape; found worldwide in riverbeds, beaches, and sedimentary deposits
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Quartz pebble
Silicon dioxide (SiO2)
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