Cosmic Evolution Fossilized ammonite slice, fine silver, red brass cuff. The spiraling form, the "golden ratio". The ammonite is said to draw away negative energies. The name is derived from the Egyptian God Ammon who took the form of a ram, ammonites are similar in appearance to a take horn. Average size, adjustable, cuff measures 3/4" at it's widest, ammonite is about 1"