
mineral
Quartz Geode
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, white to clear color, vitreous luster, hexagonal crystal system, conchoidal fracture.
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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.