
mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, clear to milky-white color, 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, clear to milky-white color, vitreous luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.
Formation & geological history
Formed through the crystallization of silica-rich hydrothermal solutions and magma cooling, occurring across diverse geological environments globally.
Uses & applications
Used extensively in electronics, glassmaking, abrasive powders, and as a popular gemstone or ornamental specimen.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits strong piezoelectric properties.
Field identification & locations
Identified easily by its inability to be scratched by a steel knife, distinct conchoidal fracture, and widespread occurrence in riverbeds and rock outcrops.