Amethyst geodes are hollow volcanic rocks lined with violet quartz crystals — most famously the giant cathedral specimens mined in Rio Grande do Sul, Brazil. Their defining beauty is contrast: luminous purple crystal points glowing out of a rough grey-beige mineral rind.

This system stages the violet against dark stone the way a crystal-healing display does, so the purple reads radiant. It is mineral, gemmy and meditative — gradients fade from crystal-tip purple through lavender into milky druzy white, never flat, never neon.