sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to white or grey color, vitreous luster, trigonal crystal system, conchoidal fracture with no true cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, transparent to white or grey color, vitreous luster, trigonal crystal system, conchoidal fracture with no true cleavage.
Formation & geological history
Formed through the mechanical weathering and water transport of primary igneous or metamorphic quartz veins over geological epochs.
Uses & applications
Used in landscaping, decorative gravel, aggregate in construction, and as a raw material for silicon extraction.
Geological facts
Quartz is one of the most abundant and durable minerals on Earth, highly resistant to both chemical and mechanical weathering.
Field identification & locations
Identified by its high hardness which scratches glass and lack of reaction to acid; commonly found in riverbeds, beaches, and conglomerate rocks worldwide.
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