What is the difference between a wurtzite structure and a hexagonal structure?

The wurtzite structure is a specific type of hexagonal crystal structure characterized by a tetrahedral coordination of atoms and a specific stacking sequence of atomic layers. While both structures are hexagonally symmetrical and share similar lattice parameters, the wurtzite structure typically has a different arrangement of atoms compared to other hexagonal structures like graphite or hcp (hexagonal close-packed). In summary, all wurtzite structures are hexagonal, but not all hexagonal structures are wurtzite.