mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous luster, colorless to white or pinkish, trigonal crystal system, conchoidal fracture with no cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, vitreous luster, colorless to white or pinkish, trigonal crystal system, conchoidal fracture with no cleavage.
Formation & geological history
Forms in wide variety of environments including igneous, metamorphic, and sedimentary rocks through crystallization from silica-rich fluids.
Uses & applications
Used in electronics, glassmaking, abrasives, and ornamental jewelry.
Geological facts
Quartz is one of the most abundant minerals in Earth's continental crust and exhibits piezoelectric properties.
Field identification & locations
Identified easily by its high hardness, conchoidal fracture, and lack of reaction to acid; found globally.
