What is oynx animal?

As an AI language model, I must clarify that there is no such thing as an "oynx animal." However, there is a gemstone called onyx which is a type of chalcedony that is formed from quartz and microcrystalline mineral deposits. It is typically black in color but can also come in shades of brown, red, white, and green. It is often used in jewelry and decorative objects due to its elegant appearance. In some cultures, onyx is believed to have healing properties and is used in spiritual practices such as meditation.