Green onyx is said to have many healing properties, including: Emotional Soothing the heart after loss, relieving stress, anxiety, worry, tension, and fear, and providing mental support for decision making Spiritual Centering energy and aligning it with higher power, helping access higher guidance Physical Enhancing physical strength and stamina, boosting energy levels, and overall vitality Mental Improving concentration and mental clarity, and helping induce restful sleep Green onyx is also said to increase confidence and be useful for public speakers, politicians, and actors. In astrology, green onyx is said to signify the beneficial power of planet mercury, which can help with intellect, communication, mental capacity, vocabulary, and business. Green Onyx is often mistaken for Emerald and Jade but differs in formation and structure. It is formed through the layering of Chalcedony and Quartz in a cryptocrystalline formation, whereas Emerald for example, is a Beryl formation. This stone has a hardness of 6.5-7, similarly to most other forms of Onyx. The color of Green Onyx is a rich, deep green and it is primarily found in Brazil, India, Madagascar, Mexico, Peru, and USA.