mineral
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically white, clear, or greyish in color, vitreous to greasy 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, typically white, clear, or greyish in color, vitreous to greasy luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
Formation & geological history
Formed through crystallization from silica-rich solutions or cooling magmas, later weathered from parent rock and smoothed by water transport in rivers or beaches over thousands to millions of years.
Uses & applications
Used in decorative landscaping, polished into ornamental stones, historical flint-knapping equivalents, and glass-making aggregates.
Geological facts
Quartz is one of the most abundant and durable minerals in the Earth's continental crust, highly resistant to both chemical and physical weathering.
Field identification & locations
Easily identified by its high hardness (scratches glass), lack of cleavage, and resistance to weathering. Commonly found in riverbeds, beaches, and glacial till worldwide.
