mineral
Amethyst Cluster
Quartz (Silicon Dioxide, SiO2)
AI-generated identification · may be incorrectMohs hardness of 7; purple to violet color due to iron impurities and natural irradiation; vitreous luster; hexagonal crystal system.
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Physical properties
Mohs hardness of 7; purple to violet color due to iron impurities and natural irradiation; vitreous luster; hexagonal crystal system.
Formation & geological history
Forms within gas cavities in volcanic rocks from silica-rich hydrothermal fluids cooling over millions of years.
Uses & applications
Widely used in jewelry, ornamental carvings, and as a popular mineral specimen for collectors.
Geological facts
Ancient Greeks believed amethyst prevented intoxication, deriving its name from the Greek word amethystos.
Field identification & locations
Easily identified by its distinct purple crystal points and conchoidal fracture; found globally with notable deposits in Brazil, Uruguay, and Zambia.
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