AM_Dy2Si2O7
Formula: Dy6 Si6 O21
Name: Dy2Si2O7
Unit cell: 6.5971 6.6504 18.0582 83.791 88.653 88.498 , V=787.19
Space group: P-1 (2)

Fleet M E , Liu X , American Mineralogist , 89 (2004) p.396-404