Melt inclusions can be used to determine the composition, compositional evolution and volatile components of magmas that existed in the history of magma systems. This is because melt inclusions act as a tiny pressure vessel that isolates and preserves the ambient melt surrounding the crystal before they are modified by later processes, such as post-entrapment crystallization. Given that melt inclusions form at varying pressures (P) and temperatures (T), they can also provide important information about the entrapping conditions (P-T) at depth and their volatile contents (HO, CO, S, Cl and F) that drive volcanic eruptions.