AM_Tm2Si2O7
Formula:
Tm5.902 Si6 O21
Name:
Tm2Si2O7
Unit cell:
6.5499 6.5876 17.8916 83.828 88.368 88.152 , V=766.87
Space group:
P-1 (2)
Fleet M E , Liu X , American Mineralogist , 89 (2004) p.396-404