
mineral
Clear Quartz Crystal
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness 7, colorless and transparent, vitreous luster, hexagonal crystal system with striated prism faces, conchoidal fracture.
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Physical properties
Mohs hardness 7, colorless and transparent, vitreous luster, hexagonal crystal system with striated prism faces, conchoidal fracture.
Formation & geological history
Forms from hydrothermal solutions in fissures and cavities in igneous and metamorphic rocks over geological time scales.
Uses & applications
Used in electronics, oscillator frequency control, optical lenses, gemstone carving, and mineral specimen collecting.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties.
Field identification & locations
Easily identified by its hexagonal crystal habit, high hardness that scratches glass, and lack of cleavage.