mineral
Amethyst
Quartz (Silicon Dioxide, SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, purple to violet color, vitreous luster, trigonal crystal system, and conchoidal fracture with no true cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, purple to violet color, vitreous luster, trigonal crystal system, and conchoidal fracture with no true cleavage.
Formation & geological history
Forms within gas cavities in volcanic rocks through hydrothermal processes involving silica-rich solutions and iron impurities.
Uses & applications
Widely used in high-end and holistic jewelry, decorative carvings, and sought after by crystal collectors.
Geological facts
Ancient Greeks believed amethyst prevented intoxication, deriving its name from the Greek word amethystos, meaning 'not drunken'.
Field identification & locations
Easily identified by its distinctive purple coloration and high hardness; commonly sourced from Brazil, Uruguay, and Zambia.
