AM_Na2Mg6Si8O22(OH)2_3
Formula: Na1.62 Mg6.19 Si8 O24 H2
Name: Na2Mg6Si8O22(OH)2
Unit cell: 9.737 18.049 5.303 90.0 102.22 90.0 , V=910.85
Space group: C12/M1 (12)

Camara F , Oberti R , Iezzi G , Della Ventura G , Physics and Chemistry of Minerals , 30 (2003) p.570-581