Onyx is known to separate. It can help release negative emotions such as sorrow and grief. It is used to end unhappy or bothersome relationships. Onyx guards against negativity Onyx jewellry is worn to defend against negativity that is directed at you. Black stones have protective energies in the sense that black is the absence of light, and therefore, can be used to create invisibility. Fortifies self confidence and responsibility Sharpens your senses Encourages a healthy egotism