Amethyst is a purple variety of quartz colored by trace amounts of iron. These crystals range from pale lavender to deep violet, depending on the conditions in which they formed. Each specimen offers a hands-on way to explore mineral formation, crystal growth, and the factors that influence color in natural minerals.nWhy You’ll Love ThisnnComposed of silicon dioxide with trace iron impurities that create its signature purple huesnTransparent to translucent crystals with natural hexagonal structures and terminationsnForms in geodes and volcanic rock cavities, demonstrating real-world mineral growth processesnHardness of 7 on the Mohs scale with a durable, glassy finishnExcellent for studying crystal chemistry and mineral color variationnnA scientifically fascinating and visually captivating specimen that connects you to the processes shaping Earth’s minerals.