mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on Mohs scale; exhibits vitreous luster and conchoidal fracture. Color ranges from clear to milky white, grey, or brown.
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Physical properties
Hardness of 7 on Mohs scale; exhibits vitreous luster and conchoidal fracture. Color ranges from clear to milky white, grey, or brown.
Formation & geological history
Formed in a wide variety of geological environments, including igneous, metamorphic, and sedimentary rocks, often crystallizing from hydrothermal veins.
Uses & applications
Widely used in electronics, glassmaking, precision instruments, and as gemstone or decorative specimens.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and displays strong piezoelectric properties.
Field identification & locations
Easily identified by its high hardness (scratches glass), lack of cleavage, and characteristic hexagonal crystal habit when well-formed.
