Kyanite is among the few crystals that are known for never needing to be purified or cleansed, for it simply does not accumulate or store negative energy. Radiating positive energy, it offers a calm and serene mood, and can also help balance and align the chakras. It can also aid in communication and helping to develop psychic ability. Sold by aproximate weight - not stone size or count. 1/2" x 7/8" - 7/8" x 1 1/4".