Ammolite is a rare and valuable stone of organic origin. These iridescence Canadian gemstones are obtained from fossilized shells of ammonite (extinct animal in the Upper Cretaceous).
The Ammolite displays a beautiful play of colors, the most common are green and red. The more colors and more iridescence and brightness the ammolite has, the more valuable the stone will be.
The Ammolite Stone is usually cut in freeform cabochon (doublets or triplets).
More information about Ammolite Stone, an Iridescent and Valuable Fossil