mineral

Tumbled Quartz (Snow Quartz)

Silicon Dioxide (SiO2)

Hardness: 7 Mohs scale; Color: Milky white to translucent; Luster: Vitreous to waxy; Crystal Structure: Hexagonal (trigonal); Cleavage: Conchonidal fracture; Specific Gravity: 2.65

Hardness: 7 Mohs scale
Color: Milky white to translucent
Luster: Vitreous to waxy

Identified June 11, 2026More mineral →

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Physical properties

Hardness: 7 Mohs scale; Color: Milky white to translucent; Luster: Vitreous to waxy; Crystal Structure: Hexagonal (trigonal); Cleavage: Conchonidal fracture; Specific Gravity: 2.65

Formation & geological history

Formed primarily in igneous and metamorphic environments, specifically in hydrothermal veins and pegmatites. The milky appearance is caused by tiny inclusions of gas or liquid trapped during crystal growth.

Uses & applications

Commonly used in jewelry (beads/cabochons), landscaping, meditation stones, glass manufacturing, and as a component in electronic quartz movements.

Geological facts

Milk quartz is the most common variety of crystalline quartz. It is responsible for the white 'veins' seen in many mountainsides. Legend often associates it with tranquility and focus.

Field identification & locations

Identify by its hardness (scratches glass), waxy luster when tumbled, and milky opacity. Found globally, especially in mountain ranges like the Alps or the Appalachians.