QuasiCrystal is a new crystal!
Quasicrystal has not a simple periodicity. It is seen as they are lining up without any order at first sight. However, it indicate sharp diffraction pattern. It means the material is not a random mixture but a true crystal. Namely,this crystal is arranged in accordance with some decided rule.
Quasicrystal has various interesting characteristics.
I am studying this exciting crystal.