AM_Eudidymite
Formula:
Na Be Si3 O8 H
Name:
Eudidymite
Unit cell:
12.62 7.37 13.99 90.0 103.72 90.0 , V=1264.07
Space group:
C12/C1 (15)
Ito T , American Mineralogist , 32 (1947) p.442-453, The structure of eudidymite (HNaBeSi3O8), Note: this structure does not make any sense