Astonishing Iridescent Ammonite with Rare Blue Coloration. Rarely are blue-indigo and violet seen in these specimens, yet, in this example, turquoise is also present. 110 million years old fossil. Visit Amazing Geologist for more.
Ammolite is a rare & valuable opal-like organic gemstone found primarily along the eastern slopes of the Rocky Mountains of North America. In ammolite was given official gemstone status by the World Jewellery Confederation, the same year commercial