An Onyx is opaque black with a vitreous luster.
It is similar to an Obsidian.
Brazil, USA, Mexico, India, Madagascar
Derived from the Greek word for fingernail. Said to have a positive impact on the nails and hair. Symbol of love and protection against wizardry in ancient Greece. Onyx is thought to have protective properties and to bring inner strength, self-confidence and mental discipline to its wearer.
Clean with warm water and soap. Do not use ultrasonic and steam cleaning the stone.