The beautiful clear white light of the white ray is your connection to the Divine Mind, and white is the color for the eighth chakra. Using Sphatik Pyramid or White Crystal will assist the higher chakras to emanate white light and aids your connection with spirit. It brings clarity to your communication and will amplify your thoughts and may assist you by stimulating clearer thinking. It has a strong resonance, which is why it is commonly used by healers as part of crystal healing. It has a positive effect on all chakras as it protects the aura and expands the human energy field.Although this stone is usually thought of as one of the chakra stones for the higher chakras, it will aid all chakras.3*3 inches aprox. Colour may vary from light to dark as these are real stones and each piece is unique.