Amethyst: Six-Sided Beauty This naturally occurring Amethyst shows vivid purple tones, caused by traces of iron (Fe³⁺) and natural radiation exposure within the crystal lattice. Each face tells the story of millions of years of Earth’s evolution. Amethyst crystals like this form in hydrothermal veins and geodes within volcanic rocks. Its perfect hexagonal geometry reflects patient crystal growth under stable temperature & pressure conditions. 🔹 Mineral Name: Amethyst (Variety of Quartz – SiO₂)