Ammolite is found only in Canada. It is an organic gemstone with optical properties that causes it to flash iridescent colors. It is made of the fossilized shells and the same mineral contained in pearls, nacre. The click-in hoop earring finding adds to their special beauty. Handcrafted in 14KY, 18KY, and 22KY gold, they measure 20mm long x 7mm wide. One of a Kind.