Black Onyx Chilli Capped Pendant with metal fittings is approximately 4.5cm. Black 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. 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 sense and encourages a healthy egotism.