
mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and trigonal crystal system with various colors including clear, white, and smoky.
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Physical properties
Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and trigonal crystal system with various colors including clear, white, and smoky.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through the crystallization of silica-rich solutions or cooling magma.
Uses & applications
Used extensively in electronics, glassmaking, abrasives, and ornamental jewelry.
Geological facts
Quartz is one of the most abundant minerals in Earth's continental crust and exhibits strong piezoelectric properties.
Field identification & locations
Identified easily by its distinct hardness (scratches glass), lack of cleavage, and hexagonal crystal habit when well-formed.