Crystal latticeRegularly spaced array of points that represents the structure of a crystal. Crystals are composed of groups of atoms repeated at regular interval in three dimensions with the same orientation. The smallest division of the lattice which can still be used to represent the entire structure is called the unit for halite (NaCl) also known as common table salt. Large green atoms are Cl–, and small blue atoms are Na+.
Atoms or groups of atoms repeated at regular intervals in three dimensions with the same orientation. One may regard each atom or group of atoms as occurring at a point and the resulting collection of points is the space lattice or lattice of the crystal.