Formula: Y.54 La.001 Ce.009 Pr.003 Nd.032 Sm.034 Gd.072 Dy.071 Er.043 Yb.03 Th.12 U.02 Ca.01 (Ti1.95 Nb.03 W.02) O6.02
Name: Aeschynite-(Y)
Unit cell: 10.803 7.532 5.18 90.0 90.0 90.0 , V=421.49
Space group: PNMA (62)

Bonazzi P , Menchetti S , European Journal of Mineralogy , 11 (1999) p.1043-1049, Crystal chemistry of aeschynite-(Y) from the Western Alps:, residual electron density on difference-Fourier map, Sample: MI, Locality: western Alps