Description
Square Black Onyx Cabochons are a staple in every jewelers tool box! Black onyx is versatile and looks great in either silver or gold. Energy healers believe that black onyx can curtail negative thinking and promote courage.
Onyx is found in Brazil, India, California, and Uruguay, and can also be white, reddish brown, brown, or banded. The stone is actually a form of chalcedony. Mohs hardness: 6.5-7
