mineral
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness of 7; white to clear color; vitreous luster; trigonal crystal system; conchoidal fracture with no true cleavage.
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Physical properties
Mohs hardness of 7; white to clear color; vitreous luster; trigonal crystal system; conchoidal fracture with no true cleavage.
Formation & geological history
Formed via crystallization in hydrothermal veins or igneous rocks, subsequently weathered, transported, and rounded by water action over long geological periods.
Uses & applications
Used in glassmaking, electronics, abrasive grit, and as decorative landscape gravel or tumbling stones.
Geological facts
Quartz is one of the most abundant and durable minerals in Earth's continental crust, highly resistant to both chemical and mechanical weathering.
Field identification & locations
Identified by its high hardness (scratches glass), lack of cleavage, and resistance to acid; commonly found in riverbeds, beaches, and glacial drift worldwide.
