mineral

Druzy agate/geode fragment

Quartz (SiO₂) crystals lining a chalcedony-rich cavity, likely an agate geode

AI-generated identification · may be incorrect

Gray-white chalcedony with a brown-orange center and sparkling druzy quartz; quartz is Mohs 7, vitreous to waxy, with trigonal crystals and no cleavage. The image does not allow reliable confirmation of the brown coloration or exact mineral species.

Identified September 23, 2026More mineral →

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Physical properties

Formation & geological history

Silica-rich fluids deposited chalcedony and tiny quartz crystals in a cavity within volcanic rock; such geodes form across many geological ages.

Uses & applications

Used as a decorative or collector specimen; polished geode pieces are also used in jewelry and ornamentation.

Geological facts

Druzy describes a surface densely covered with small crystals, rather than a distinct mineral species.

Field identification & locations

Look for a curved chalcedony rind surrounding a sparkling crystal-lined cavity; similar specimens occur in volcanic regions worldwide. The pictured piece appears to be a natural, broken geode fragment.