Ammolite turtle shellAmmolite turtle shell pendant. Set in sterling silver. This Canadian gemstone one of the rarest gemstones on earth. It has an amazing vibrancy and the colour and patterns change with the angle. Some people describe them as being like an opal as no two stones are the same. Ammolite is one of the few organic gemstones. The creatures ammonites became fossilized and a very small percentage of them gained iridescent colours. Pendant size 35x12x4 mm