mineral

Druzy Quartz Geode

Silicon Dioxide (SiO2)

Hardness: 7 on Mohs scale; Color: Clear to white; Luster: Vitreous/glassy; Crystal Structure: Hexagonal (trigonal); Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Hardness: 7 on Mohs scale
Color: Clear to white
Luster: Vitreous/glassy

Identified June 28, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Clear to white; Luster: Vitreous/glassy; Crystal Structure: Hexagonal (trigonal); Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Formation & geological history

Formed when mineral-rich groundwater precipitates silica into cavities or hollow bubbles in rocks (often volcanic or sedimentary) over millions of years.

Uses & applications

Commonly used in jewelry (druzy pendants), lapidary art, spiritual collection, and as decorative display specimens.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. The term 'druzy' refers to the tiny glittering crystals that mimic granulated sugar or frost.

Field identification & locations

Identify by its sparkling surface of tiny crystals that scratch glass. Found globally, especially in Brazil, Uruguay, and the United States (Missouri, Iowa). Store away from extreme heat to prevent discoloration.