Tetragonal unit cell

A tetragonal unit cell is a basic building block of certain crystal structures, characterized by having two sides of equal length and a third side that is different. Imagine a box where the base is a square—its length and width are the same—but the height is either longer or shorter. This shape repeats in space to create the overall crystal. The angles between the faces are all right angles. The tetragonal structure is common in minerals and materials where symmetry and uniformity are key to their properties.