Geology, which is part of the geosciences, deals with the composition and structure of the earth's crust (earth = grch. Ge), its physical properties and its history of development as well as the processes that shape it. Mineralogy deals with the individual, sometimes microscopically small components of rocks, the minerals. Palaeontology deals with the fossil content (fossilised remains of plants or animals) of sedimentary rocks. Each rock in the earth's crust can be assigned to one of the three major rock classes based on its specific formation (microstructure, structure). Each of these can be transformed into a rock of the other two by geological processes (rock cycle):

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Diplom-Sommelier, Weinakademiker und Weinberater, Volders (Österreich)