AM_Mg3Si4O10(OH)2_H2O Formula: Mg3 Si4 O13 H4 Name: Mg3Si4O10(OH)2*H2O Unit cell: 5.323 9.203 10.216 90.0 99.98 90.0 , V=492.88 Space group: C12/M1 (12)

Comodi P , Fumagalli P , Nazzareni S , Zanazzi P F , American Mineralogist , 90 (2005) p.1012-1016, The 10 A phase: Crystal structure from single-crystal X-ray data