Opal Ammolite Ammonite Fossil Madagascar Polished
Beautiful, polished Ammolite Ammonite Fossil. This fossil is firey-but most of the color is on one side! It is 1.5 inches long by 1 inch wide and almost .5 inch thick.
This is an Ammonite from the Lower Cretaceous (Lower Albian) of Madagascar. Fossil Ammonite Desmoceras Latidorsatum, 100 million years old (Late Cretaceous Period).
Ammonites are extinct mollusks related to the modern squid, octopus and Chambered Nautilus. These creatures died out at the close of the Cretaceous Period, about sixty-five million years ago. Their exsistence on earth lasted for about 330 million years Their hard shells are found as fossils in many places throughout the world.
Ammonites were first called Ammon's Stones because of their resemblance to the ram's horns of Ammon, the ancient God of Life and Procreation.
The nacreous shell of the ammonite is comprised of alternating layers of aragonite and conchiolin. Under certain conditions related to fossilization, the nacreous shell becomes highly iridescent; the resulting gemlike material is called "ammolite." The human eye perceives this as an array of colors.