mineral

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

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

Hardness: 7 on Mohs scale
Color: Milky white to light tan
Luster: Vitreous to greasy

Identified April 7, 2026More mineral →

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Physical properties

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

Formation & geological history

Formed through the cooling of silica-rich magma or from hydrothermal veins. The milky appearance is caused by tiny liquid or gas inclusions trapped during crystal growth. Can be found in various geological ages from Precambrian to recent.

Uses & applications

Used as an abrasive, in glassmaking, as a gemstone (tumbled stones), and in the production of silicon for electronics and solar panels.

Geological facts

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

Field identification & locations

Identify by its ability to scratch glass, its lack of cleavage, and its translucent-to-opaque white appearance. Common in riverbeds, mountain ranges, and as vein material in igneous and metamorphic rocks.