Black onyx is a type of chalcedony, a mineral in the quartz family. It has been used for centuries for its healing properties and is believed to provide several benefits when worn as jewelry or carried as a talisman. Here are some of the benefits of wearing black onyx:

1. Protection: Black onyx is known for its protective properties, shielding you from negative energies and promoting a sense of safety and security.

2. Grounding: Like black lava, black onyx is also known for its grounding properties, helping to connect you to the earth and promote balance.

3. Emotional stability: Black onyx is believed to promote emotional stability and help alleviate anxiety and stress, making it a popular choice for those who struggle with these issues.

4. Self-control: Black onyx is associated with the root chakra, which is connected to our sense of stability, self-control, and determination. Wearing black onyx can help promote these qualities within you.

5. Focus: Black onyx is believed to enhance mental focus and clarity, making it a great stone for those who need to concentrate on their work or studies.