Lepidolite: It is a stabilizing stone. Lepidolite is the best gemstone for helping to calm the emotions and bring in tranquil thoughts. 
Known as the Peace Stone, it helps with to relax allowing the mind to change its perceptions or fiercely held beliefs. It brings deep emotional healing, soothing and reducing stress and depression.
Related Chakra: Third Eye, Crown
Energy Words: Calm, peace