mineral
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness of 7, white with a brownish iron-oxide stain, vitreous luster, conchoidal fracture, trigonal crystal system.
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Physical properties
Mohs hardness of 7, white with a brownish iron-oxide stain, vitreous luster, conchoidal fracture, trigonal crystal system.
Formation & geological history
Formed through crystallization in igneous or metamorphic environments, later weathered, transported, and rounded by water action in sedimentary streams.
Uses & applications
Used in landscaping, decorative gravel, glassmaking, and abrasive grit.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties.
Field identification & locations
Identified by its high hardness (scratches glass), lack of cleavage, and resistance to chemical weathering, commonly found in riverbeds and beaches worldwide.
