Crystallization is the process in which a supersaturated solution or melt's solute molecules come together in a regular, ordered arrangement to form a solid crystal. This process is crucial in many fields, including chemistry, materials science, and geology, as it is used to purify substances, manufacture materials with specific properties, and study the structure and properties of crystals. Various techniques are employed to control and optimize the crystallization process, such as cooling, evaporation, and seeding. Through the study of crystallization, researchers aim to understand the mechanisms behind crystal growth, develop new materials with desired properties, and improve the efficiency of industrial processes.