Sardonyx assists with creativity, Courage, Happiness, protection, and psychic vision. Ancient Romans wore and carried Sardonyx for protection.
This is known as a warriors stone.
 
Palm Stones are excellent to carry with you, helping you to stay in sync with your intentions. They can assist with keeping your emotions and energy in check, allowing you to approach your day with more mindfulness. Also, using a palm stone, by holding it in your hand during meditation can enhance your practice.