AM_Na2Mg6Si8O22(OH)2_2
Formula: Na1.62 Mg6.19 Si8 O24 H2
Name: Na2Mg6Si8O22(OH)2
Unit cell: 9.723 18.027 5.301 90.0 102.26 90.0 , V=907.95
Space group: C12/M1 (12)

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