gemstone
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, and conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, purple to violet color, vitreous luster, hexagonal crystal system, and conchoidal fracture.
Formation & geological history
Forms in hydrothermal veins and gas cavities of volcanic rocks, often crystallizing from silica-rich solutions at low to moderate temperatures.
Uses & applications
Widely used in jewelry, decorative ornaments, and crystal healing collections.
Geological facts
Ancient Greeks believed amethyst prevented intoxication, deriving its name from the Greek word amethystos, meaning not intoxicated.
Field identification & locations
Easily identified by its distinctive purple color and lack of cleavage; commonly sourced from Brazil, Uruguay, and Zambia.
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