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

White Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

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

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Physical properties

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

Formation & geological history

Forms primarily from cooling magma in igneous pegmatites or hydrothermal veins across various geological ages.

Uses & applications

Used in glassmaking, electronics, abrasives, and as a popular lapidary material for decorative carvings.

Geological facts

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

Field identification & locations

Identified by its lack of cleavage, high hardness capable of scratching glass, and distinctive white color.