Ammolite is composed of the fossilised shells of Ammonites. The different layers of the shell, which is formed of Aragonite, yield different colours - blues and purples are the top layers, which are the hardest to find as they are the first ones to erode or get damaged. Then comes greens and yellows, and finally reds are the deepest layer. Ammolite, also known by the trade name Koroite, is a very rare gem as it is only mined in southwest Alberta, Canada.
Red, Green, Blue, Purple
3.5 - 4
Crown, Third Eye, Throat, Heart, Solar Plexus, Sacral, Root