Third Eye Chakra is our 6th Chakra. This is our spiritual self, intuition, cosmic awareness and psychic centre. This Chakra brings wisdom and spirituality to us. Using stones to develop this wisdom within usually uses purple, indigo or deep blue colours. Crystals like Amethyst, Astrophyllite, Tiffany Stone, Ametrine, Sodalite and Iolite are very suited.
Try meditating with them and feel deep levels of your consciousness waiting and the inner peace that unfolds.