mineral

Milky Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness: 7 Mohs; Color: White to translucent; Luster: Vitreous to greasy; Crystal Structure: Hexagonal; Cleavage: None/Conchoidal fracture; Specific Gravity: 2.65.

Hardness: 7 Mohs
Color: White to translucent
Luster: Vitreous to greasy

Identified May 10, 2026More mineral →

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Physical properties

Hardness: 7 Mohs; Color: White to translucent; Luster: Vitreous to greasy; Crystal Structure: Hexagonal; Cleavage: None/Conchoidal fracture; Specific Gravity: 2.65.

Formation & geological history

Formed in hydrothermal veins and pegmatites through the crystallization of silica-rich solutions at high temperatures. Milky white color is caused by microscopic inclusions of gas or liquid.

Uses & applications

Used in the manufacture of glass, ceramics, and abrasives. Tumbled specimens are popular for metaphysical use and lapidary practice.

Geological facts

Milky Quartz is the most common variety of crystalline quartz. Historically, it was used to create tools and ornaments by ancient civilizations due to its durability.

Field identification & locations

Identified by its white, cloudy appearance and the ability to scratch glass. Found globally, especially in mountain ranges with metamorphic and igneous activity.