mineral
Quartz Geode
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to white color, vitreous luster, and hexagonal crystal system with no true cleavage.
Identified More mineral →
Explore Quartz Geode in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 7 on the Mohs scale, transparent to white color, vitreous luster, and hexagonal crystal system with no true cleavage.
Formation & geological history
Formed in hollow cavities of sedimentary or volcanic rocks where silica-rich groundwater precipitates crystals over millions of years.
Uses & applications
Used widely in decorative items, lapidary arts, metaphysical practices, and as collector specimens.
Geological facts
Geodes appear as ordinary bumpy rocks externally but reveal dazzling crystal interiors when cracked open.
Field identification & locations
Easily identified by its hollow nodular shape lined with sparkling crystal points; commonly found in limestone formations worldwide.
