mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, clear to white or brownish color, vitreous luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65
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Physical properties
Hardness of 7 on the Mohs scale, clear to white or brownish color, vitreous luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65
Formation & geological history
Formed in a wide variety of geological environments including igneous, metamorphic, and sedimentary rocks, often precipitated from hydrothermal solutions or silica-rich fluids over millions of years
Uses & applications
Used in electronics, watches, glassmaking, abrasives, and as decorative gemstones or collector specimens
Geological facts
Quartz is one of the most abundant minerals found in the 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 high hardness (scratches glass), conchoidal fracture, and lack of cleavage; found globally in almost every rock type and region
