mineral

Quartz Druzy (Geode Fragment)

Silicon Dioxide (SiO2)

Hardness: 7 (Mohs scale); Color: White to colorless; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: None/Conchoidal fracture; Specific Gravity: 2.65

Hardness: 7 (Mohs scale)
Color: White to colorless
Luster: Vitreous (glassy)

Identified June 19, 2026More mineral →

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Physical properties

Hardness: 7 (Mohs scale); Color: White to colorless; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: None/Conchoidal fracture; Specific Gravity: 2.65

Formation & geological history

Formed through hydrothermal precipitation or crystallization from silica-rich fluids inside rock cavities (vugs) or geodes. These specimens can range in age from thousands to hundreds of millions of years.

Uses & applications

Used primarily in jewelry (beads and pendants) and as decorative display pieces or collector specimens; also popular in metaphysical practices.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. These specific 'druzy' formations refer to the sugary layer of tiny crystals that cover a host rock surface.

Field identification & locations

Identify by its hardness (scratches glass) and its crystalline white appearance with a tan or yellowish rough outer matrix. Commonly found globally, particularly in volcanic ash beds or sedimentary limestone voids.

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