18 inch’s Pure Copper Wire Handmade Ammonite Fossil with Grade A Moonstone Necklace. Ammonite is known as a 'visionary stone' that opens the third eye and higher crown chakras, facilitating communication with spiritual guides. This mystical fossil stone has an affinity with the element of water and is linked to moon energy. It is thought to promote fluidity, emotional harmony, and flow in one's life.