mineral

White Quartz (Milky Quartz Mushroom)

Silicon Dioxide (SiO2)

Hardness: 7 on Mohs scale; Color: Opaque white; Luster: Vitreous (glassy) to waxy when polished; Crystal structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65.

Hardness: 7 on Mohs scale
Color: Opaque white
Luster: Vitreous (glassy) to waxy when polished

Identified March 25, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Opaque white; Luster: Vitreous (glassy) to waxy when polished; 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 constituent in igneous pegmatites. The cloudy 'milky' appearance is caused by microscopic fluid inclusions of gas or liquid trapped during crystal growth.

Uses & applications

Commonly used in lapidary work for carvings (like the mushroom shape shown), decorative home decor, metaphysical 'healing' stones, and as a source of silicon for glass and electronics manufacturing.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Milky quartz is the most common variety of quartz. In some cultures, white quartz symbolizes purity and clarity.

Field identification & locations

Identify in the field by its hardness (will easily scratch glass but cannot be scratched by a steel knife) and lack of cleavage. This specific specimen has been tumble-polished and carved into a decorative 'crystal mushroom' shape.

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