Fossil Ammolite Necklace on Silver (JS-58)
Ammolite is an Opal-like organic gemstone. It is primarily made of the fossilized shell of Ammonites. The shell is primarily composed of Aragonite, the same mineral contained in the pearly nacre, with a microstructure inherited from the shell. Its iridescence jumps out to your eye like very few materials. Ammolite is usually very pricey.
Size: 2.25" X 1&3/16"