mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness of 7, vitreous luster, hexagonal crystal system, conchoidal fracture, and specific gravity of 2.65.
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Physical properties
Mohs hardness of 7, vitreous luster, hexagonal crystal system, conchoidal fracture, and specific gravity of 2.65.
Formation & geological history
Forms primarily from cooling magma in igneous rocks or precipitating from hydrothermal solutions across all geological eras.
Uses & applications
Used in electronics, glassmaking, abrasives, gemstones, and ornamental carvings.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties.
Field identification & locations
Identify by its inability to be scratched by steel and its distinctive conchoidal fracture; found worldwide in virtually all rock types.
