Rock Identifier
Quartz Geode (Silicon Dioxide (SiO2)) — mineral
mineral

Quartz Geode

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, white to clear color, vitreous luster, hexagonal crystal system, conchoidal fracture.

Identified More mineral →
Explore Quartz Geode in the encyclopedia →

Identify your own rocks.

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

Physical properties

Hardness of 7 on the Mohs scale, white to clear color, vitreous luster, hexagonal crystal system, conchoidal fracture.

Formation & geological history

Formed when silica-rich groundwater deposits crystals inside hollow cavities in sedimentary or volcanic rocks over millions of years.

Uses & applications

Used primarily in crystal healing, decorative display pieces, jewelry, and mineral collections.

Geological facts

Geodes appear as ordinary rocks on the outside but conceal dazzling crystal formations when cracked open.

Field identification & locations

Easily identified by its rounded, nodular exterior and sparkling interior crystal lining; found worldwide, notably in Brazil and Mexico.