Tridymite SiO2 Structure

The SiO2 Tridymite crystalline structure is challenging to print due to its large empty regions. Therefore, the use of properly sized balls representing Oxygen atoms is crucial in order to join corner sharing tetrahedra inside the structure.

The impression of these model shown here was done at the Scientific Fabrication Laboratory of the Abdus Salam ICTP in Trieste (Italy).