Amethyst Lace Agate: Where Delicate Patterns Meet Purple Grace The alluring purple hues gemstones with the shades of blue and grey is Amethyst Lace Agate sourced from Durango, Mexico. It's characterized by layers of agate with amethyst lace patterning, distinguished by its pink-red banding. Occasionally, pyrite may be present in veins rather than nodules within this material.