AM_Sorensenite
Formula:
Na4 Sn Be2 Si6 O20 H4
Name:
Sorensenite
Unit cell:
20.78 7.45 12.05 90.0 117.1 90.0 , V=1660.67
Space group:
C1C1 (9)
Maksimova N V , Ilyukhin V V , Belov N V , Soviet Physics Doklady , 18 (1974) p.681-682, Crystal structure of sorensenite