Amethyst Cathedral Geode with Rare Bi-color Formation and Golden Goethite InclusionsRare Natural Amethyst Geode with Bi Color Amethyst and Lace Agate An extraordinary Amethyst Geode that showcases a superb formation with two distinct colors, this geode showcases a blend of deep purple Amethyst lines that intricately interlace with lines of lavender Amethyst, creating a unique and rarely seen mix in nature. The druzy in this specimen is a true conversation starter, the intact points bring naturally polished facets that bring the