AM_Tunellite Formula: Sr B6 O14 H8 Name: Tunellite Unit cell: 14.39 8.213 9.934 90.0 114.03 90.0 , V=1072.30 Space group: P121/A1 (14)

Clark J R , American Mineralogist , 49 (1964) p.1549-1568, The crystal structure of tunellite, SrB6O9(OH)2.3H2O