If the metal oxide forms a perfect cubical structure with exposed plane 100 and in that case remaining planes will not be exposed. Under this condition X-ray diffraction peak of 100 plane will be prominent. In the other hand when cubical will convert into octahedron structure. Including 100 will get other plane diffraction peaks.
Question: Whether this is right when structure is perfect cubical will give only one diffraction of particular plane. And the 111 or other plane diffraction peak will appear or not?