mineral
Quartz Geode
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, clear to white color, vitreous luster, hexagonal crystal system, conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, clear to white color, vitreous luster, hexagonal crystal system, conchoidal fracture.
Formation & geological history
Formed when mineral-rich hydrothermal fluids precipitate silica inside hollow cavities of sedimentary or volcanic rocks over millions of years.
Uses & applications
Used in decorative items, jewelry, crystal healing, and industrial applications requiring pure silica.
Geological facts
Geodes appear as ordinary bumpy rocks on the outside, but cracking them open reveals glittering crystal linings.
Field identification & locations
Identify in the field by looking for rounded, nodular shapes with bumpy weathered exteriors; common worldwide.
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