mineral
Quartz pebble
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness 7 on the Mohs scale, white to translucent color, vitreous luster, trigonal crystal system, and conchoidal fracture with no true cleavage.
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Physical properties
Hardness 7 on the Mohs scale, white to translucent color, vitreous luster, trigonal crystal system, and conchoidal fracture with no true cleavage.
Formation & geological history
Formed through mechanical weathering and fluvial transport of primary quartz veins or pegmatites, highly resistant to chemical erosion.
Uses & applications
Used in construction aggregates, landscaping, glass manufacturing, and abrasive materials.
Geological facts
Quartz is one of the most abundant minerals in the Earth's continental crust and frequently survives long transport cycles as smooth pebbles.
Field identification & locations
Easily identified by its high hardness (scratches glass) and lack of cleavage; commonly found in riverbeds, beaches, and glacial outwash.
