mineral

White Quartz (Carved or Tumbled)

Silicon Dioxide (SiO2)

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

Hardness: 7 (Mohs scale)
Color: White to milky translucent
Luster: Vitreous/waxy

Identified April 10, 2026More mineral →

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Physical properties

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

Formation & geological history

Formed through the crystallization of silica-rich hydrothermal solutions or cooling of igneous magma. It is one of the most abundant minerals in the Earth's crust and can be found in rocks of all geological ages.

Uses & applications

Used in gemstone carving, jewelry making, and glass manufacturing. In industrial forms, it is used for electronics and piezoelectric oscillators.

Geological facts

Milky quartz gets its white color from tiny fluid inclusions of gas or liquid trapped during crystal growth. It is the most common variety of crystalline quartz.

Field identification & locations

Identify by its ability to scratch glass and lack of cleavage. This specific specimen appears to be a carved or highly weathered/tumbled piece. Common in mountain ranges and riverbeds globally.

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