Ammolite - Originates from the crushed, layered, and fossilized remains of the placenticeras ammonite shells. Found in the Bearpaw shale formation near Lethbridge, Alberta, Canada. Thousands of shells were layered upon each other and then covered with volcanic ash. After 71 million years of exposure to elemental movement, intense heat and tectonic pressure, the crushed and compacted ammonite debris emerges as AMMOLITE.
Ammolite is a rare and valuable opal-like organic gemstone found primarily along the eastern slopes of the Rocky Mountains. It is made of the fossilized shells of ammonites, which in turn are composed primarily of aragonite, the same mineral that makes up nacreous pearls. It is one of several biogenic gemstones; others include amber and pearl. In 1981, ammolite was given official gemstone status by the World Jewellery Confederation. Hardness: 4.5 - 5.5