| Symbol | Structure Name | Space Group (Example) | Representative Substances | Description |  X: Green   Y: Yellow  |
|---|---|---|---|---|---|
| C1 | Fluorite type | \(Fm\bar{3}m\) | CaF2 | X atoms are located at the lattice points of the face-centered lattice, and Y atoms are located at the centers of the 2×2×2 sub-lattice. X is cubically surrounded by 8 Y atoms, and Y is tetrahedrally surrounded by 4 X atoms. | |
| C2 | Pyrite type | \(Pa\bar{3}\) | FeS2 | ||
| C3 | Cuprite | \(Pn\bar{3}m\) | Cu2O | ||
| C4 | Rutile type | \(P4_2/mnm\) | TiO2 | ||
| C5 | Anatase type | \(P4_1/amd\) | TiO2 | ||
| C6 | Cadmium iodide | \(P\bar{3}m1\) | CdI2 | ||
| C7 | Molybdenum disulfide structure | MoS2 | |||
| C8 | β-quartz | \(P6_222\) | SiO2 | ||
| C9 | β-cristobalite | \(Fd\bar{3}m\) | SiO2 | ||
| C10 | β-tridymite | \(P6_3/mmc\) | SiO2 | ||
| C11a | \(I4/mmm\) | CaC2 | |||
| C11b | Molybdenum disilicide structure | \(I4/mmm\) | MoSi2 | ||
| C12 | \(R\bar{3}m\) | CaSi2 | |||
| C13 | Coccinite structure | \(P4_2/nmc\) | HgI2 | ||