gemstone
Amethyst
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness of 7; purple to violet color; vitreous luster; trigonal crystal system; specific gravity of 2.65.
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Physical properties
Mohs hardness of 7; purple to violet color; vitreous luster; trigonal crystal system; specific gravity of 2.65.
Formation & geological history
Forms in hydrothermal veins and gas cavities of volcanic rocks through the irradiation of iron impurities within quartz.
Uses & applications
Widely used in jewelry, ornamental carvings, and crystal healing collections.
Geological facts
Ancient Greeks believed amethyst prevented intoxication, deriving its name from the Greek word amethystos meaning sober.
Field identification & locations
Identified by its distinct purple hue and conchoidal fracture, commonly sourced from Brazil, Uruguay, and Zambia.
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