Citation: Sokolova, E. V.; Hawthorne, F. C.; Della Ventura, G.; Kartashov, P. M. (2004). 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). The Canadian Mineralogist, 42, pp. 1013-1025.