mineral
Quartz Geode
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, and a trigonal crystal system.
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Physical properties
Hardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, and a trigonal crystal system.
Formation & geological history
Formed in hollow cavities of sedimentary or volcanic rocks through the slow deposition of silica-rich groundwater over millions of years.
Uses & applications
Commonly used in jewelry, decorative items, and metaphysical practices due to its attractive crystalline interior.
Geological facts
Geodes appear as ordinary, unassuming rocks on the outside, but cracking them open reveals stunning crystalline formations.
Field identification & locations
Easily identified by its spherical or nodular exterior shape and hollow interior lined with quartz crystals; found worldwide in limestone and basalt formations.
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