Space group 166 · R-3m
· trigonal
- Number
- 166
- Symbol
- R-3m
- Full symbol
- R -3 2/m
- Schoenflies
- \Gamma_{rh}D_{3d}^5
- Crystal system
- trigonal
- Point group
- -3 2/m (-3m) ·
- Lattice
- R · Rhombohedral
- Symmorphic
- Yes
- Examples
- Bismuth, Antimony, Arsenic, Calcite
· trigonal