Chapter 3 is all about symmetry. We will start with the symmetries that can be found in everyday objects.
You will then learn how to classify crystals into their respective classes. We have prepared a small poster, so you can keep track of your very own collection of crystals.
Furthermore, we want to begin to talk about translational symmetry. This symmetry is a particular feature of crystal structures with their repetitive patterns.
The Fascination of Crystals and Symmetry 