AM_Dollaseite-(Ce) Formula: (Ca.963 Ce1.037) Si3 Mg1.867 Fe.148 Al.985 O12.13 F.87 H Name: Dollaseite-(Ce) Unit cell: 8.934 5.721 10.176 90.0 114.3 90.0 , V=474.03 Space group: P121/M1 (11)

Peacor D R , Dunn P J , American Mineralogist , 73 (1988) p.838-842, Dollaseite-(Ce) (Magnesium orthite redefined): Structure refinement and, implications for F + M2+ substitutions in epidote-group minerals, Note: Mg3-x coordinate has been corrected