The Tetragonal System is one of the seven crystal systems in crystallography. It is characterized by three axes, where two axes are of equal length and perpendicular to each other, while the third axis is of a different length and also perpendicular to the other two. This arrangement creates a rectangular prism shape, which can be elongated or compressed along the unique axis. Common examples of minerals that crystallize in the tetragonal system include zircon and rutile. The symmetry of tetragonal crystals allows for specific physical properties, making them important in various applications, including electronics and jewelry.