Synchysite
Synchysite is a group of carbonate minerals. The three isostructural chemical end members are synchysite-(Ce), synchysite-(Nd) and synchysite-(Y). Huanghoite-(Ce) belongs to the group, but has a different symmetry and calcium is replaced by barium.
| Mineral name | Chemical formula | Symmetry | Space group |
| Huanghoite-(Ce) | |||
| Synchysite-(Ce) | |||
| Synchysite-(Nd) | |||
| Synchysite-(Y) |