mineral

Druzy Quartz (on Quartzite or Chert)

Silicon Dioxide (SiO2)

Hardness: 7 (Mohs scale); Color: Clear to white crystals on a tan/peach host rock; Luster: Vitreous/glittering; Crystal Structure: Hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Hardness: 7 (Mohs scale)
Color: Clear to white crystals on a tan/peach host rock
Luster: Vitreous/glittering

Identified March 19, 2026More mineral →

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Physical properties

Formation & geological history

Formed via hydrothermal activity where silica-rich fluids precipitate into cavities or over existing rock surfaces. The tiny crystals (druse) grow as the solution cools and minerals deposit slowly over time.

Uses & applications

Commonly used in jewelry for its 'glitter' effect without the cost of diamonds. Also used for metaphysical practices, home decor, and as entry-level mineral specimens in collections.

Geological facts

The word 'Druzy' comes from the German word 'druse,' which refers to a rock cavity with a crust of crystals. It is unique because it combines the strength of quartz with a high surface area that reflects light in many directions.

Field identification & locations

Identify by its 'sugar-like' sparkling surface that glitters under shifting light. Found globally, especially in regions with volcanic history or sedimentary limestone beds. Collectors search for unbroken surfaces with high clarity.

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