"INNER STRENGTH, PERSONAL POWER, & ANXIETY" ~ Gold plated over copper ~ Stones vary in color Properties: Inner Strength, Confidence, & Power Chakras: Root (1st), Solar Plexus (3rd), Third Eye (6th) Spiritual properties: Encourages persistence, willpower, and enhances mental ability. Black Onyx is known as a stone of inner strength. It enhances one's endurance and persistence which helps with completing difficult and challenging tasks. It helps aid with a mental focus which helps one to learn new things and use well all one has already mastered. What do we like about this stone? Black Onyx aids with helping one to control and direct one's will, which is powerful when enhancing personal power.