Diamond cubic
![Unit cell of the diamond cubic crystal structure](/Images/godic/202501/08/Diamond_Cubic-F_lattice_animation2048.gif")
![Rotating model of the diamond cubic crystal structure](/Images/godic/202501/08/Diamond_cubic_animation2048.gif")
![Pole figure in stereographic projection of the diamond lattice showing the 3-fold symmetry along the [111] direction.](/Images/godic/202501/08/DiamondPoleFigure1112048.png")
![Visualisation of a diamond cubic unit cell: 1. Components of a unit cell, 2. One unit cell, 3. A lattice of 3 x 3 x 3 unit cells](/Images/godic/202501/08/Visualisation_diamond_cubic.svg2048.png")
The diamond cubic crystal structure is a repeating pattern of 8 atoms that certain materials may adopt as they solidify. While the first known example was diamond, other elements in group 14 also adopt this structure, including α-tin, the semiconductors silicon and germanium, and silicon/germanium alloys in any proportion.