The problem with the video we see is that the sample never actually levitates - one side is touching the magnet. So a regular diamagnetic material, with enough

The problem with the video we see is that the sample never actually levitates - one side is touching the magnet. So a regular diamagnetic material, with enough weight on one side, would display the same effect. In this video shortly after this moment you see something very similar looking with pyrolytic carbon: https://youtu.be/VC3r9-OaWes?t=133 https://youtu.be/VC3r9-OaWes?t=133