What is the unit cell of a mineral?

The unit cell of a mineral is the smallest repeating unit that defines the crystal structure of that mineral. It is characterized by specific dimensions and angles, which determine the overall symmetry and arrangement of atoms within the crystal lattice. The unit cell can be described using parameters such as the lengths of its edges and the angles between them, allowing for the classification of minerals based on their crystallographic properties. Understanding the unit cell is crucial for determining a mineral's physical and chemical properties.