Cleaning and Caring for Afghanite Gemstone Afghanite gemstones can easily be cleaned with warm, soapy water and a soft brush. It's important to avoid harsh chemicals, ultrasonic cleaners, and high heat. Store afghanite away from other gemstones to prevent scratches and chips. Periodic re-polishing may also help to maintain the gem's luster and shine. https://www.cabochonsforsale.com/gemstone/afghanite