Opalite heart shaped worry stoneDimensions 40 x 40 x 5 mmThis beautiful polished opaline crystal is charged by the light of the full moon. Each crystal is truly unique.Worry stones also known as Palmstone to have a thumb sized indentation so you can carry it in your pocket and rub it for relaxation of stress relief. People use them by holding the crystal between the index finger and thumb and rubbing one’s thumb back and forth across the stone.