AM_Cymrite Formula: Ba (Al2 Si2) O9 H3.5 Name: Cymrite Unit cell: 5.33 36.59999 7.67 90.0 90.0 90.0 , V=1496.25 Space group: P1211 (4)

Drits V A , Kashaev A A , Sokolova G V , Soviet Physics Crystallography , 20 (1975) p.171-175, Crystal structure of cymrite, Note: Y(O11) corrected