SEARCH Articles Figures Tables Closest hexagonal Closest packing Closest packing, cubic hexagonal Closest-packed crystal structures hexagonal Crystals hexagonal closest packed Hexagonal Hexagonal and cubic closest packing of equal spheres Hexagonal closest packed Hexagonal closest packed hep) structure Hexagonal closest packed structure Hexagonal closest packing (hep) Hexagonal closest packing model Hexagonal closest packing of spheres Hexagonal closest packing system Hexagonal-closest packing crystal structure Hexagonally closest Hexagonally closest packed lattice Hexagons Metal hexagonal closest packing Packing double hexagonal-closest Unit cell hexagonal closest-packed