mineral

Milky Quartz

Silicon Dioxide (SiO2)

Hardness: 7 (Mohs scale); Color: Milky white to translucent; Luster: Vitreous to greasy; Crystal Structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Hardness: 7 (Mohs scale)
Color: Milky white to translucent
Luster: Vitreous to greasy

Identified May 7, 2026More mineral →

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Physical properties

Hardness: 7 (Mohs scale); Color: Milky white to translucent; Luster: Vitreous to greasy; Crystal Structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Formation & geological history

Formed through the crystallization of silica-rich hydrothermal fluids in veins or as a primary constituent in igneous rocks like granite. The milky appearance is caused by tiny liquid or gas inclusions trapped during crystal growth.

Uses & applications

Used in glass manufacturing, as an abrasive, in the production of silicon metal for electronics, and as decorative stone or landscaping gravel.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Milky quartz is often referred to as 'Snow Quartz' in metaphysical circles.

Field identification & locations

Identify in the field by its hardness (it will scratch glass), its white waxy appearance, and the lack of cleavage planes. Frequently found in riverbeds, mountain ranges, and near quartz veins.