mineral

Milky quartz pendant

Quartz (silicon dioxide, SiO₂)

AI-generated identification · may be incorrect

Typically hardness 7 Mohs, vitreous to waxy luster, white to translucent color, and a hexagonal crystal structure; it has no cleavage and conchoidal fracture. The specimen appears roughly carved or tumbled and wire-wrapped.

Identified August 18, 2026More mineral →

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Physical properties

Formation & geological history

Milky quartz forms when microscopic fluid inclusions or defects cloud otherwise clear quartz, commonly in hydrothermal veins and igneous or metamorphic rocks. Quartz is widespread from Precambrian to modern geological settings.

Uses & applications

Used as an ornamental stone, pendant material, lapidary rough, and source mineral for glass, ceramics, and electronics. This piece is primarily jewelry or decorative material.

Geological facts

Quartz is one of Earth’s most abundant minerals and is piezoelectric, producing an electrical charge under pressure. The cloudy appearance distinguishes it from transparent rock crystal.

Field identification & locations

Identify it by its glassy luster, hardness, lack of cleavage, and ability to scratch ordinary glass; a steel blade should not scratch it easily. Common sources include Brazil, Madagascar, the United States, and worldwide quartz veins.