Lattice Structures
Crystaline phases consist of atoms, or molecules, occupying nodes of lattices. Lattices are also interesting as starting configurations for dense disordered phases (see below).
Building the lattices
Here are some ordered structures that are used as starting configurations in the computer simulation of condensed matter. The descriptions are provided with a view to the writing of numerical codes; in other words, a rigorous crystallographic formalism should not be expected.