Dumortierite is known as the stone of communication. It is aligned with both the Throat Chakra and the Third Eye Chakra. Dumortierite can activate intellectual and intuitive abilities, improving memory and helping you to develop patience and calmness. Bundle of 3 tumbles Approximately .5" to 1.5" Value $12 MEDICAL DISCLAIMER - The information on this site is not intended or implied to be a substitute for professional medical advice, diagnosis or treatment.