This rainbow is a beautiful drawing of color with glass. The marble is about 2.5 inches in size and captures chaos suspended in glass. Using colored glass cane to create a rainbow spinning out of control yet giving a sense of peace. A graphite mold is used on the surface of the marble to create a perfect finish.
You can watch a video of a similar marble being made :
https://youtu.be/Bn6nYw4nYVQ?si=KM1w6089PFH6Ftxt