mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

AI-generated identification · may be incorrect

Hardness: 7 on Mohs scale; Color: Milky white to pale pink; 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 pale pink
Luster: Vitreous to greasy

Identified April 5, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Milky white to pale pink; 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 white color is caused by microscopic fluid inclusions of gas or liquid trapped during the crystal's growth.

Uses & applications

Used in glassmaking, abrasives, electronics (due to piezoelectric properties), and as decorative gravel or low-cost lapidary material.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Milky quartz is the most common variety of quartz found in nature.

Field identification & locations

Identifiable by its white color, lack of cleavage, and ability to easily scratch glass. Commonly found in riverbeds, gravel pits, and mountain veins worldwide.