AM_Wadsleyite_26 Formula: Mg1.864 O4.129 Si H2 Name: Wadsleyite Unit cell: 5.6807 11.5243 8.2515 90.0 90.09 90.0 , V=540.19 Space group: I12/M1 (12)

Holl C M , Smyth J R , Jacobsen S D , Frost D J , American Mineralogist , 93 (2008) p.598-607, Effects of hydration on the structure and compressibility of wadsleyite, beta-(Mg2SiO4), Locality: synthetic, Sample: SS0401, 1.66 wt% H2O