Mineral crystal habits refer to the macroscopic appearance of crystals. By observing the characteristic habits of a crystal, it is possible to identify both the crystal and the mineral it contains. Identifying crystal habits involves recognizing the shape, structure, and other distinguishing features such as flat surfaces or distinct patterns. For example, cubic habits are common in minerals like galena, halite, and iron pyrite, while prismatic habits are seen in minerals like tourmaline and quartz.