mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

AI-generated identification · may be incorrect

Hardness: 7 on Mohs scale; Color: Opaque white to creamy; Luster: Vitreous to greasy; Crystal structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific gravity: 2.65

Hardness: 7 on Mohs scale
Color: Opaque white to creamy
Luster: Vitreous to greasy

Identified July 13, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Opaque white to creamy; Luster: Vitreous to greasy; Crystal structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific gravity: 2.65

Formation & geological history

Formed from the cooling of silica-rich hydrothermal veins or within igneous pegmatites. The milky appearance is caused by tiny fluid inclusions of gas or liquid trapped during crystal growth.

Uses & applications

Used in glass making, abrasive materials, electronics (as a piezoelectric material), and as decorative landscaping stones or metaphysical healing crystals.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Milky quartz specifically gets its color from microscopic bubbles of water or CO2 that scatter light.

Field identification & locations

Identified in the field by its hardness (scratches glass), lack of cleavage, and white opaque color. It is found globally, often appearing as veins inside other rock types.