Spinels are a group of oxide minerals that share a common crystal structure and general formula of AB2O4, where 'A' and 'B' represent different metal cations. They are characterized by their high stability, diverse chemical composition, and occurrence in various geological environments, making them significant both scientifically and economically. Spinels are often used to illustrate the relationships between mineral structures and their chemical compositions, as well as their role in understanding the formation processes of metamorphic and igneous rocks.
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