CARING FOR YOUR AMMOLITE: Like all gemstones, Ammolite should be treated with care and attention. Use a soft, non-abrasive cloth to clean your Ammolite jewelry. • Avoid exposure to direct heat. • Do not over-expose to water. • Avoid hard impact to the stone • Avoid ultrasonic cleaners. We cap each piece of Ammolite to protect the gemstone and increase its hardness on the Moh's scale from 4 to 7.5 You have a beautiful, durable piece of art that will last for years to come.