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

Rock Crystal Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Mohs hardness of 7, transparent to translucent, vitreous luster, trigonal crystal system with no cleavage.

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Physical properties

Mohs hardness of 7, transparent to translucent, vitreous luster, trigonal crystal system with no cleavage.

Formation & geological history

Forms primarily from hydrothermal veins and cooling magma chambers over millions of years.

Uses & applications

Widely used in jewelry, electronics, optical lenses, and decorative carvings.

Geological facts

Ancient civilizations believed rock crystal was permanently frozen celestial ice.

Field identification & locations

Identified by its high hardness, conchoidal fracture, and hexagonal prism habit; globally distributed.