mineral
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, colors vary from translucent white to grey, vitreous luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, colors vary from translucent white to grey, vitreous luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
Formation & geological history
Formed via crystallization in igneous, metamorphic, and sedimentary environments, often rounded into pebbles by water action in rivers or beaches over thousands to millions of years.
Uses & applications
Used in landscaping, decorative gravel, glassmaking, and occasionally polished for lapidary work or jewelry.
Geological facts
Quartz is one of the most abundant and durable minerals in Earth's continental crust, highly resistant to both mechanical and chemical weathering.
Field identification & locations
Easily identified in the field by its high hardness (scratches glass) and conchoidal fracture. Found worldwide in almost all geological settings, particularly in stream beds and coastal areas.
