mineral

Druzy Quartz on Matrix

Silicon Dioxide (SiO2)

Hardness: 7 (Mohs); Color: White to translucent crystals on a grayish-brown matrix; Luster: Vitreous/glassy; Structure: Hexagonal crystals; Cleavage: None (conchoidal fracture).

Hardness: 7 (Mohs)
Color: White to translucent crystals on a grayish-brown matrix
Luster: Vitreous/glassy

Identified July 6, 2026More mineral →

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Physical properties

Hardness: 7 (Mohs); Color: White to translucent crystals on a grayish-brown matrix; Luster: Vitreous/glassy; Structure: Hexagonal crystals; Cleavage: None (conchoidal fracture).

Formation & geological history

Formed through hydrothermal processes where silica-rich fluids permeate cavities in volcanic or sedimentary rocks. As the fluids cool, small quartz crystals grow on the surface.

Uses & applications

Used primarily for metaphysical purposes, decorative home decor, and as entry-level mineral specimens for collectors.

Geological facts

The term 'druzy' (or druse) refers to a coating of fine crystals on a rock fracture, surface, or vein. It is named for the German word 'Druse,' meaning a hollow space in a rock containing minerals.

Field identification & locations

Identify in the field by looking for a 'sugar-like' sparkling coating on rock surfaces. It is common in regions with volcanic history or hydrothermal activity, such as Brazil, Uruguay, or parts of the Southwestern US.