mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 on Mohs scale, Color: Colorless, white, gray, brown, or smoky, Luster: Vitreous (glassy), Crystal structure: Trigonal, Cleavage: None (conchoidal fracture), Specific gravity: 2.65
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Physical properties
Hardness: 7 on Mohs scale, Color: Colorless, white, gray, brown, or smoky, Luster: Vitreous (glassy), Crystal structure: Trigonal, Cleavage: None (conchoidal fracture), Specific gravity: 2.65
Formation & geological history
Forms in a wide variety of geological environments, including igneous, metamorphic, and sedimentary rocks. It is a primary component of granite and pegmatites, and precipitates from hydrothermal solutions.
Uses & applications
Used in electronics, glassware, precision instruments, gemstones, and abrasives.
Geological facts
Quartz is one of the most abundant minerals in Earth's continental crust and exhibits piezoelectric properties, meaning it can generate an electric charge under mechanical stress.
Field identification & locations
Easily identified by its conchoidal fracture, lack of cleavage, and high hardness (scratches glass). Found worldwide in almost all types of rock formations.
