Category Mineral Strunz classification 5.BD. | Formula
(repeating unit) Ca(REE)(CO3)2F Mohs scale hardness 4.5 | |
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Crystal system Monoclinic and trigonal | ||
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.
References
Synchysite Wikipedia(Text) CC BY-SA