When I open the POSCAR or CIF files on VESTA, the crystal structure seems to be different than the crystal structure specified in the Materials Project. For example, on MP, it says cubic structure, but it’s triclinic on VESTA. Why does it happen? How can I make sure what is the actual crystal structure?
I just came here with a similar remark. Looking into the ScF3 structure to prepare something for a class I’m teaching I found:
It clearly states the structure to be cubic (I’m looking for a cubic structure) but the visualisation already shows this is not the case, and the lattice parameters show even make it clear that this is rather a hexagonal structure.