mineral

Milky quartz

Quartz (silicon dioxide, SiO₂)

AI-generated identification · may be incorrect

Typically white to translucent with a vitreous-to-waxy luster and massive, irregular texture; Mohs hardness 7, no cleavage, conchoidal fracture, and specific gravity about 2.65. The specimen appears rough and pale, though the blurry image prevents precise confirmation.

Identified September 19, 2026More mineral →

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Physical properties

Formation & geological history

Forms when silica-rich fluids crystallize in veins, cavities, and igneous or metamorphic rocks; milky color results from microscopic fluid inclusions. Quartz is widespread from Precambrian rocks to modern hydrothermal deposits.

Uses & applications

Common quartz is used in glass, ceramics, abrasives, foundry materials, and electronics; attractive pieces are collected or cut for ornamental objects and inexpensive jewelry.

Geological facts

Quartz is one of Earth’s most abundant minerals and is piezoelectric, producing an electrical charge when mechanically stressed.

Field identification & locations

Identify by its hardness— it scratches ordinary glass—lack of cleavage, conchoidal fracture, and white translucent appearance. Common worldwide, especially in quartz veins, granite pegmatites, and metamorphic terrains.