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 translucent color, vitreous to greasy luster, trigonal crystal system, and conchoidal fracture with no true cleavage.

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Physical properties

Hardness of 7 on the Mohs scale, white to translucent color, vitreous to greasy luster, trigonal crystal system, and conchoidal fracture with no true cleavage.

Formation & geological history

Forms primarily from hydrothermal veins, cooling magma, and metamorphic processes, occurring across diverse geological ages.

Uses & applications

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

Geological facts

Milky quartz is the most common variety of crystalline quartz, taking its cloudy appearance from microscopic fluid inclusions trapped during growth.

Field identification & locations

Identified easily by its lack of cleavage, high hardness that scratches glass, and distinct white coloration; found worldwide.