Onyx – Onyx is a semiprecious stone that is striated or banded. It is commonly black and white striped, but can be many colors. In your dreams it will probably be in the form of a carved cameo of the kind that was popular in recent centuries. This stone is symbolic of nobility and wealth. To dream of onyx indicates that you are financially stable. If you dream about a cameo, the scene that is portrayed in the stone is important and will be allegorical to your present or near future situation.