What is petalite? It is one of the sacred mystery stones, known as the Synergy 12, and of this elite group of stones petalite is the most powerful, most healing, and most successful for connecting you with the upper realms, where the angels and archangels reside. This stone is more powerful than black tourmaline for protection. Its power comes from Spirit, from heaven above. This stone instantly brings feelings of peace, alignment, and calmness – like an angel is next to you holding your hand.