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 jewelry is worn to defend against negativity that is directed at you. It assists with challenges in life, especially those caused by a drain of energy. Black stones have protective energies in the sense that black is the absence of light, and therefore, can be used to create invisibility. It has been used for wound healing, childbirth and to increase stamina and self-control