
mineral
Rock Crystal Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, colorless to white, vitreous luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, colorless to white, vitreous luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.
Formation & geological history
Forms in hydrothermal veins, pegmatites, and cavity linings through cooling and precipitation of silica-rich fluids over millions of years.
Uses & applications
Used in electronics for frequency control, optical components, gemstone carving, and mineral collections.
Geological facts
Quartz is one of the most abundant minerals in Earth's continental crust and exhibits strong piezoelectric properties.
Field identification & locations
Identified by its high hardness, conchoidal fracture, and characteristic hexagonal prismatic crystal habit; found globally.