mineral
Quartz Geode Fragment
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to white color, vitreous luster, and trigonal crystal system.
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Physical properties
Hardness of 7 on the Mohs scale, transparent to white color, vitreous luster, and trigonal crystal system.
Formation & geological history
Formed through the deposition of silica-rich groundwater inside gas cavities of volcanic or sedimentary rocks over millions of years.
Uses & applications
Used primarily in lapidary arts, mineral collecting, and occasionally for decorative items.
Geological facts
Geodes form when mineral matter precipitates from hydrothermal fluids lining the inside of hollow nodules.
Field identification & locations
Easily identified by its crystalline interior and tough exterior shell; commonly found in limestone formations worldwide.
