mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Hardness: 7 on Mohs scale. Color: White to translucent cloudy. Luster: Vitreous/Glassy when wet or polished, dull when dry. Crystal Structure: Hexagonal/Trigonal. Cleavage: Poor/Conchoidal fracture. Specific Gravity: 2.65.

Hardness: 7 on Mohs scale
Color: White to translucent cloudy
Luster: Vitreous/Glassy when wet or polished, dull when dry

Identified June 18, 2026More mineral →

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Physical properties

Formation & geological history

Forms through the crystallization of silica-rich hydrothermal veins or within igneous pegmatites. The milky appearance is caused by tiny inclusions of gas or liquid trapped during crystal growth.

Uses & applications

Used as an abrasive, in glass making, as a gemstone (cabochons), and as a decorative landscaping stone. Also highly valued by mineral collectors for its metaphysical associations.

Geological facts

Milky quartz is one of the most common varieties of crystalline quartz. Historically, it was used by ancient civilizations for tools and talismans. It is often found as the 'mother' rock for gold in hydrothermal veins.

Field identification & locations

Identify in the field by its hardness (will scratch glass), white cloudy appearance, and lack of cleavage. Look for it in riverbeds as rounded pebbles or in mountainous areas within large white veins.