mineral

Quartz Pebble

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness: 7 (Mohs scale); Color: Milky white to translucent with some yellowish oxidation; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal (though water-worn); Cleavage: None (conchoidal fracture); Specific gravity: 2.65

Hardness: 7 (Mohs scale)
Color: Milky white to translucent with some yellowish oxidation
Luster: Vitreous to waxy

Identified June 19, 2026More mineral →

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Physical properties

Formation & geological history

Formed through the cooling of silica-rich magma or from hydrothermal veins. This specific specimen has been rounded by fluvial processes (water erosion) and is likely part of a quaternary sedimentary deposit.

Uses & applications

Used in glassmaking, electronics, abrasives, and common landscaping gravel. High-purity quartz is used for silicon wafers in technology.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. It is piezoelectric, meaning it generates an electric charge in response to applied mechanical stress.