AM_Veatchite
Formula: Sr2 B11 O22 H7
Name: Veatchite
Unit cell: 20.86 11.738 6.652 90.0 92.1 90.0 , V=1627.68
Space group: A1A1 (9)

Clark J R , Christ C L , American Mineralogist , 56 (1971) p.1934-1954, Veatchite: Crystal structure and correlations with p-veatchite