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

Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, white to clear color with iron-staining, vitreous luster, conchoidal fracture, and specific gravity of 2.65.

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Physical properties

Hardness of 7 on the Mohs scale, white to clear color with iron-staining, vitreous luster, conchoidal fracture, and specific gravity of 2.65.

Formation & geological history

Formed in hydrothermal veins, pegmatites, and sedimentary environments worldwide through the crystallization of silica-rich solutions.

Uses & applications

Used extensively in electronics, glassmaking, abrasive powders, and ornamental carvings or gemstone jewelry.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties.

Field identification & locations

Easily identified by its high hardness (scratches glass), lack of cleavage, and glassy luster. Found globally in almost all geological environments.