mineral
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, yellowish-brown surface staining, vitreous luster, and conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, yellowish-brown surface staining, vitreous luster, and conchoidal fracture.
Formation & geological history
Formed via weathering and fluvial transport of primary quartz veins or pegmatites, rounding over long periods in riverbeds.
Uses & applications
Used in landscaping, decorative stone, glassmaking raw material, and lapidary practice.
Geological facts
Quartz is one of the most abundant and durable minerals on Earth's continental crust, highly resistant to both chemical and mechanical weathering.
Field identification & locations
Identified easily by its inability to be scratched by steel and its distinctive smooth, rounded pebble shape found in gravel bars and riverbeds.
