Install gcrystal by entering the following commands in the terminal:
sudo apt update sudo apt install gcrystal
Description:
lightweight crystal structures visualizer
GNOME Crystal is a light model visualizer for crystal-structures. It is based on the GNOME Chemistry Utils and should display models of all sorts of crystal microscopic structures using OpenGL.
Homepage: http://www.nongnu.org/gchemutils/
Version: 0.14.17-1ubuntu1
Section: universe/science