Rock Identifier
Milky Quartz (Silicon Dioxide (SiO2)) — mineral
mineral

Milky Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, white to milky translucent color, vitreous to greasy luster, trigonal crystal system, and conchoidal fracture.

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Physical properties

Hardness of 7 on the Mohs scale, white to milky translucent color, vitreous to greasy luster, trigonal crystal system, and conchoidal fracture.

Formation & geological history

Forms primarily from hydrothermal solutions cooling deep within the Earth's crust across various geological eras.

Uses & applications

Used in glassmaking, electronics, abrasives, and as an ornamental gemstone or collector specimen.

Geological facts

It is the most common variety of crystalline quartz found globally, often containing microscopic fluid inclusions.

Field identification & locations

Identified by its milky appearance, high hardness, and lack of cleavage; commonly found in hydrothermal veins and pegmatites worldwide.