Green Onyx is associated with Heart Chakra and the planet Mercury. It helps to develop your public speaking ability, creativeness and also encourage you to express your feelings and thoughts. This stone creates a bridge between the upper three chakras and lower three chakras.
Green Onyx carries with it the primary properties of all forms a of Onyx which are known for strength, willpower, and discipline. The green varieties stimulate these traits directly from the heart. Its able to soothe one's heart, bringing one to a calm emotional state.
Note: As these gemstones are natural, there may be variations in color, grain, shapes etc. These differences adds character and make each piece wonderfully unique.