Formula: Y.639 Ce.005 Pr.001 Nd.011 Sm.01 Gd.068 Dy.065 Er.034 Yb.025 Th.06 U.004 Ca.01 (Ti1.95 Nb.05) W.03 O6
Name: Aeschynite-(Y)
Unit cell: 10.862 7.483 5.15 90.0 90.0 90.0 , V=418.59
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: TR1, Locality: western Alps