mineral
Quartz Geode
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on Mohs scale, clear or white color, vitreous luster, hexagonal crystal system, and no cleavage.
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Physical properties
Hardness of 7 on Mohs scale, clear or white color, vitreous luster, hexagonal crystal system, and no cleavage.
Formation & geological history
Formed when mineral-rich groundwater deposits silica inside hollow cavities of sedimentary or volcanic rocks over millions of years.
Uses & applications
Used in jewelry, decorative display specimens, and metaphysical practices.
Geological facts
Geodes start as gas bubbles in volcanic rock or animal burrows in sedimentary rock, gradually filling with sparkling quartz crystals inside a tough outer shell.
Field identification & locations
Easily identified by its rough, rounded exterior coupled with a sparkling internal cavity lined with quartz crystals. Common worldwide, especially in deserts.
