turquoise:
Properties : Believed to be a powerful personal protection stone. Helps to enable communication from the highest source of love as well as eases feelings of negativity and low self esteem.
Healing effects : Wear to ease breathing and open the flow of emotional expression.
Personal effects : Wear over the chest as personal and psychic protection.
Color : Blue, green in various shades
Mohs hardness : 5 - 6
Birthstone for : December