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

Quartz Druzy

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, gray to brownish-clear color, vitreous luster, hexagonal crystal system, and conchoidal fracture.

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Physical properties

Hardness of 7 on the Mohs scale, gray to brownish-clear color, vitreous luster, hexagonal crystal system, and conchoidal fracture.

Formation & geological history

Formed via hydrothermal precipitation where silica-rich fluids cool and deposit crystals in rock cavities.

Uses & applications

Used primarily in crystal healing, decorative home displays, and jewelry making.

Geological facts

Druzy refers to a coating of fine crystal grains on a rock fracture surface or vein.

Field identification & locations

Easily identified by its sparkling sugar-like texture and hardness; found worldwide, prominently in Brazil and the USA.