Ammolite is an opal-like organic gemstone found primarily along the eastern slopes of the Rocky Mountains of North America. It is made of the fossilized shells of ammonites, which in turn are composed primarily of aragonite, the same mineral contained in nacre, with a microstructure inherited from the shell. Ammolite has a Mohs rating of 3.5-4.5 in hardness. Referred to as “Buffalo Stone” by the Blackfoot tribe which represents wealth, good health and stamina. Ammolite is associated with beauty, seductive charm, charisma.