AM_Wadsleyite_3 Formula: Mg3.44 Si1.888 H.355 O8 Name: Wadsleyite Unit cell: 5.6715 11.582 8.258 90.0 90.397 90.0 , V=542.43 Space group: I12/M1 (12)

Smyth J R , Kawamoto T , Jacobsen S D , Swope R J , Hervig R L , Holloway J R , American Mineralogist , 82 (1997) p.270-275, Crystal structure of monoclinic hydrous wadsleyite [beta-(Mg,Fe)2SiO4], Note: occupancies of octahedral sites are estimates