Quartz crystal - Overall balance of the Chakra system Amethyst - It is concerned with understanding knowledge and mental organising Sodalite - Communication, personal expression and the flow of information Green Quartz/ Aventurine - Deals with relationships and personal development Citrine - Helps give self confidence and personal power Carnelian- Its functions are creativity, feelings and sexual drive Hematite - It gives stability, energy distribution and physical survival