An optical Calcite healing crystal from Mexico. This light crystal is associated with clear sight on both physical and spiritual levels. It is considered cleansing and beneficial in many ways. Mineral Species - CalciteCrystal System - RhombohedralBirthstone - CancerChakra Alignment - Crown Crystal Attributes: This crystal comes with a handy reference card describing all key mineral properties and crystal healing attributes. For more information visit our Calcite Stone Type page. Learn more about Crystal Healing. Product Code: XCP1 Birth Signs: Cancer June 21st - July 20th Chakra: Crown (Sahasrara or Seventh Chakra) Stone Types: Calcite - Optical