Preferred orientation arises when there is a stronger tendency for the crystallites in a powder or a texture to be oriented more one way, or one set of ways, than all others. An easily visualized case of preferred orientation is that which results when a material with a
Preferred orientation should not be confused with 'graininess' or '
Section 2.3 of International Tables of Crystallography, Volume C for X-ray techniques
Section 2.4 of International Tables of Crystallography, Volume C for electron techniques