AM_Er2Si2O7
Formula: Er2 Si2 O7
Name: Er2Si2O7
Unit cell: 4.683 5.556 10.79 90.0 90.0 96.0 , V=279.20
Space group: P1121/B (14)

Smolin Y I , Shepelev Y F , Acta Crystallographica, Section B , 26 (1970) p.484-492, The crystal structures of the rare earth pyrosilicates