
mineral
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness of 7, transparent to opaque with vitreous luster, hexagonal crystal system, and no cleavage.
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Physical properties
Mohs hardness of 7, transparent to opaque with vitreous luster, hexagonal crystal system, and no cleavage.
Formation & geological history
Formed through hydrothermal processes in rock cavities or pegmatites over millions of years.
Uses & applications
Used in electronics, oscillators, glassmaking, and decorative gemstone collections.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties.
Field identification & locations
Identified by its high hardness, conchoidal fracture, and distinct hexagonal crystal habit; found worldwide.