AM_Mg10Ge3O14[OH]4 Formula: Mg10 Ge3 O18 H4 Name: Mg10Ge3O14[OH]4 Unit cell: 14.202 5.1676 8.8756 90.0 90.0 90.0 , V=651.38 Space group: PNN2 (34)

Thomas S M , Muller M K , Kahlenberg V , Thomas R , Rhede D , Wirth R , Wunder B , American Mineralogist , 93 (2008) p.1282-1294, Protonation in germanium equivalents of ringwoodite, anhydrous phase B,, and superhydrous phase B, Locality: synthetic, Note: superhydrous phase B Ge-ringwoodite, Note: published bond lengths could not be reproduced