Shop for Selenite Sri yantra Charging Healing Disk from Crystal Export. The Shri Yantra, Sri Yantra, or Shri Chakra is a form of mystical diagram (yantra) used in the Shri Vidya school of Hinduism. It consists of nine interlocking triangles that surround a central point known as a bindu. These triangles represent the cosmos and the human body. Selenite is a crystallized form of Gypsum, which is used for good luck and protection. The powerful vibration of Selenite can clear, open, and activate the Crown and Higher Chakras and is excellent for all types of spiritual work. Selenite can also be used to strengthen the memory. These Selenite charging disks are beautiful with amazing energy.