Work in progress
| Symbol | Structure Name | Space Group (Example) | Representative Substances | Description |  X: Green   Y: Yellow  |
|---|---|---|---|---|---|
| D011 | Cementite type | Fe3C2 | |||
| D51 | Corundum type | Al2O3, Fe2O3, Cr2O3 | Looking only at the Y (oxygen) positions, the arrangement is identical to the hcp structure. X occupies 2/3 of the octahedral interstices. Looking only at X, the arrangement is identical to the graphite structure. | ||
| D | |||||
| D | |||||
| D | |||||
| D | |||||
| D | |||||
| D |