mineral
Amethyst
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 no cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, purple to violet color, vitreous luster, hexagonal crystal system, and no cleavage.
Formation & geological history
Forms within gas cavities in volcanic rocks through the deposition of silica-rich hydrothermal fluids over millions of years.
Uses & applications
Widely used in fine jewelry, decorative carvings, spiritual healing, and mineral collections.
Geological facts
The purple color is caused by iron impurities and natural irradiation. Historically, it was as valuable as diamond.
Field identification & locations
Easily identified by its distinct purple hexagonal crystals and conchoidal fracture. Commonly sourced from Brazil, Uruguay, and Zambia.
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