AM_Chevkinite-(Ce)_3 Formula: Ce4 Fe2.22 Mn.06 Zr.01 Ti2.55 Nb.16 Si4 O22 Name: Chevkinite-(Ce) Unit cell: 13.368 5.7243 11.041 90.0 100.516 90.0 , V=830.69 Space group: C12/M1 (12)

Sokolova E V , Hawthorne F C , Della Ventura G , Kartashov P M , The Canadian Mineralogist , 42 (2004) p.1013-1025, Chevkinite-(Ce): Crystal structure and the effect of moderate radiation-induced, damage on site-occupancy refinement, Locality: Mongolia, Reported formula: (Ce1.88 La1.01 Nd.61 Pr.19 Sm.06 Gd.03 Ca.27 Y.03 Th.02), (Fe2+.93 Mn.06 Zr.01) (Ti2.55 Fe3+1.29 Nb.16) Si3.91 O22, Crystal (3an)