mineral

Milky quartz

Quartz (silicon dioxide, SiO₂)

AI-generated identification · may be incorrect

Translucent white to pale bluish piece with a vitreous luster and irregular fracture; quartz has Mohs hardness 7, trigonal crystal structure, and no cleavage. The lighting makes its color uncertain.

Identified October 4, 2026More mineral →

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Physical properties

Translucent white to pale bluish piece with a vitreous luster and irregular fracture; quartz has Mohs hardness 7, trigonal crystal structure, and no cleavage. The lighting makes its color uncertain.

Formation & geological history

Forms when silica-rich fluids crystallize in veins and cavities, or during igneous and metamorphic processes. Quartz is widespread in rocks of many geological ages.

Uses & applications

Quartz is used in glass, electronics, construction, and ornamental objects; attractive pieces may be cut or polished for jewelry and collecting.

Geological facts

Quartz is among Earth’s most abundant minerals and commonly occurs in granite, pegmatite, and hydrothermal veins.

Field identification & locations

Look for hardness near 7, glassy luster, and fracture surfaces that do not show cleavage; common worldwide. The photo alone cannot confirm quartz versus another pale translucent mineral.