
mineral
Amethyst
Quartz (Silicon Dioxide, SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, purple to violet color, vitreous luster, hexagonal crystal system, conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, purple to violet color, vitreous luster, hexagonal crystal system, conchoidal fracture.
Formation & geological history
Forms within gas cavities in igneous rocks through hydrothermal solutions containing iron impurities and natural irradiation.
Uses & applications
Widely used in jewelry, ornamental carvings, and crystal collections.
Geological facts
Ancient Greeks believed amethyst prevented intoxication, deriving its name from the Greek word 'amethystos'.
Field identification & locations
Identified by its distinct purple color and crystal cluster formation; commonly sourced from Brazil, Uruguay, and Zambia.