In mineralogy and<unk> lography, a<unk>  is a unique arrangement of atoms in a<unk> .  A<unk>  is composed of a motif, a set of atoms arranged in a particular way, and a lattice.  Motifs are located upon the points of a lattice, which is an array of points repeating periodically in three dimensions. The points can be thought of as forming identical tiny boxes, called unit cells, that fill the space of the lattice.  The lengths of the edges of a unit cell and the angles between them are called the lattice parameters. The symmetry properties of the<unk>  are embodied in its space group.
A<unk> 's<unk>  and symmetry play a role in determining many of its properties, such as cleavage, electronic band<unk> , and optical properties.
Crystal structure
SI prefix
Microbiology template
Kick chart
Peptide sequence
Serotype
Classification template
Electromagnetic spectrum