This hand-thrown, stoneware mug features an amethyst crystal surrounded by the phases of the moon cycle. Enjoy studying the facets of the amethyst crystal, as it brings you evening after evening of relaxation through all the phases of the moon cycle. This mug is glazed in midnight snowflake with white and honey details. All the glazes I use are food safe and lead-free. This vessel is 4 1/2" tall and holds 12oz. of your favorite beverage 🙂