gemstone
Amethyst Quartz Pendant
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale; color ranges from pale lavender to deep purple; vitreous (glass-like) luster; trigonal crystal system; no true cleavage; specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale; color ranges from pale lavender to deep purple; vitreous (glass-like) luster; trigonal crystal system; no true cleavage; specific gravity of 2.65.
Formation & geological history
Forms in hydrothermal veins and gas cavities (vugs) in volcanic rocks, where silica-rich solutions cool and crystallize over long geological timescales.
Uses & applications
Widely used in jewelry as cut or polished gemstones, lapidary arts, decorative items, and by collectors or spiritual practitioners.
Geological facts
Amethyst is the purple variety of quartz. Its distinct violet color is caused by irradiation, iron impurities, and the presence of trace elements.
Field identification & locations
Identified by its purple color and characteristic quartz hardness. Commonly found worldwide, notably in Brazil, Uruguay, Zambia, and the USA.
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