Rhombohedral
| Bravais lattice | |||
|---|---|---|---|
 | |||
Different structures
D51 (α-Al2O3, α-Fe2O3)
D51 (same structure, different description)
Crystal structures: triclinic - monoclinic - orthorhombic - hexagonal - rhombohedral - tetragonal - cubic
| Bravais lattice | |||
|---|---|---|---|
| |||
Crystal structures: triclinic - monoclinic - orthorhombic - hexagonal - rhombohedral - tetragonal - cubic