Onyx - Can be used to banish grief, to enhance self-control, to stimulate the power of wise decision making, and to encourage happiness and good fortune. It is grounding and can be used to deflect or absorb the negativity of others.
Howlite cleanses and protects the Chakras. It is a very energizing stone. It also allows you to express your emotions calmly, allowing you to say what is necessary in a manner that is not offensive to the listener. This gemstone can be very effective to help connect you with your spirit guides.