mineral
Rock Crystal
Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 7 on Mohs scale, colorless or transparent, vitreous luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.
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Physical properties
Hardness of 7 on Mohs scale, colorless or transparent, vitreous luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.
Formation & geological history
Forms through the cooling of silica-rich hydrothermal veins or molten magma over millions of years.
Uses & applications
Used in electronics, optical lenses, decorative items, and mineral collecting.
Geological facts
Ancient civilizations believed rock crystal was permanently frozen ice that never melted.
Field identification & locations
Identified by its high hardness, hexagonal prism shape, and lack of cleavage; found globally in pegmatites and hydrothermal veins.
