Metallic crystals are structures made entirely of metal elements. The atoms in these structures are bonded through metallic bonding – this is a type of bonding in which an electrostatic force between a cloud of delocalised electrons is attracted to the positively-charged metal atoms.

In that crystal, metal atoms occupy the eight corners of a cube along with one atom in the very center. The coordination number of each atom in the body-centered cubic structure is 8. In the face-centered cubic (fcc) structure, there are eight atoms at each corner of the cube and six atoms in the center of each face

Examples of metallic crystals are gold, aluminum, and copper. These crystals have a range of melting points, depending on the configuration of electrons. They are typically high density with a shiny surface.