The stunning structures you see in this video by Emanuele Fornasier come from his experiment to generate crystals. The process is carried out very slowly by an electric current: layer by layer the crystal is born. It takes hours or even days for the crystals to take shape. But, as you can see here, the results are absolutely mesmerizing.
Top gif image created from the video.
[Source: Emanuele Fornasier via Vimeo.]