Banded Onyx is a variety of Chalcedony, a micro-crystalline Quartz, silicon dioxide, that exhibits straight, parallel banding. The orange/red/brown coloured varieties of Banded Onyx are usually known as Sardonyx.
In crystal healing Banded Onyx is seen as a stone of happiness, good fortune and strength. Green Banded Onyx is associated with the heart.
It is thought to bring strength, balance and self control.
It is perfect for people under extreme mental or emotional stress. It brings balance to mind or body as well as a sense of security.