mineral
Amethyst Geode
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
Formed within gas cavities in volcanic rocks through the slow deposition of silica-rich groundwater over millions of years.
Uses & applications
Extensively used in high-end jewelry, decorative display pieces, and metaphysical healing practices.
Geological facts
The purple color is caused by natural irradiation and trace amounts of iron impurities within the quartz crystal structure.
Field identification & locations
Easily identified by its distinctive purple crystal points lining a hollow rock cavity; commonly sourced from Brazil and Uruguay.
