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 high-pressure crystallization in igneous and metamorphic environments, later weathered and rounded by water transport.
Uses & applications
Used in landscaping, abrasive grit, glass manufacturing, and as a durable lapidary stone for tumbling and jewelry.
Geological facts
Quartz is one of the most abundant and durable minerals in Earth's continental crust, surviving weathering cycles that destroy other minerals.
Field identification & locations
Easily identified by its high hardness (scratches glass), lack of cleavage, and resistance to chemical weathering in riverbeds and beaches.
