Turquoise
In the world of crystal healing, Turquoise is a stone of communication. It is recommend it for people who have a fear of public speaking. It has the ability to make a speaker more eloquent, loving, creative and honest. But it is also improves the mental state overall by increasing all of the following positive mental characteristics: serenity, creativity, empathy, positive thinking, sensitivity, intuition, happiness wisdom all of which result in a calmer state that leads to greater self-realisation.
It is also considered a stone of friendship. As a communication stone, it opens up the connections between friends allowing love to flow in those communications, which strengthens the friendship bond. It has the power to strengthen convictions, courage and personal power.