The Olivine Group is a group of silicate minerals primarily composed of magnesium and iron. These minerals are typically found in igneous rocks and are known for their green color. The most common member of this group is forsterite, which is rich in magnesium, while fayalite is iron-rich. Olivine is often used in various industrial applications, including as a refractory material and in the production of glass. Olivine forms under high-temperature conditions and is commonly found in basalt and peridotite. It plays a significant role in the Earth's mantle and is also present in some meteorites. Due to its unique properties, olivine is studied in geology and materials science for insights into Earth's formation and processes.