mineral

Quartz geode with druzy crystals

Quartz (SiO₂), likely with iron-oxide staining and darker host rock

AI-generated identification · may be incorrect

Pale gray to smoky, glassy crystals lining a cavity; quartz has Mohs hardness 7, a hexagonal crystal system, no cleavage, and conchoidal fracture. The specimen appears unpolished and crystalline.

Identified October 14, 2026More mineral →

Explore Quartz geode with druzy crystals in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Pale gray to smoky, glassy crystals lining a cavity; quartz has Mohs hardness 7, a hexagonal crystal system, no cleavage, and conchoidal fracture. The specimen appears unpolished and crystalline.

Formation & geological history

Formed as silica-rich fluids deposited quartz crystals inside a cavity in host rock. The image cannot establish its age or precise geological setting.

Uses & applications

Quartz geodes are chiefly collected and displayed; larger pieces may be used in decorative objects and lapidary work.

Geological facts

The sparkling inner lining is called druzy, made up of many small crystals rather than one large crystal.

Field identification & locations

Look for a hollow or partly filled cavity with glittering, glassy crystals; quartz resists scratching by a steel knife. Geodes occur worldwide, including in volcanic and sedimentary terrains.