
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, conchoidal fracture, and hexagonal crystal system.
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Physical properties
Hardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, conchoidal fracture, and hexagonal crystal system.
Formation & geological history
Formed through the crystallization of silica-rich solutions or cooling magmas, often weathered from pegmatites or hydrothermal veins into durable pebbles.
Uses & applications
Used in glassmaking, electronics, abrasives, and as decorative landscape or tumbling stones.
Geological facts
Quartz is one of the most abundant minerals in Earth's continental crust and exhibits piezoelectric properties, generating an electric charge under mechanical stress.
Field identification & locations
Easily identified by its inability to be scratched by steel and its distinct conchoidal fracture; commonly found in riverbeds, beaches, and sedimentary deposits worldwide.