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 color caused by microscopic fluid inclusions, vitreous to greasy luster, and hexagonal crystal system with no cleavage.

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Physical properties

Hardness of 7 on the Mohs scale, white to milky color caused by microscopic fluid inclusions, vitreous to greasy luster, and hexagonal crystal system with no cleavage.

Formation & geological history

Formed through the cooling and crystallization of silica-rich hydrothermal solutions within cracks and veins of Earth's crust.

Uses & applications

Used in glassmaking, abrasives, electronics, and as a decorative mineral specimen for collectors.

Geological facts

Milky quartz is the most common variety of quartz found globally, often occurring in massive vein formations rather than distinct single crystals.

Field identification & locations

Easily identified by its characteristic white turbidity and high hardness that scratches glass. Found worldwide, particularly in pegmatites and hydrothermal veins.