AM_Chlorite_5 Formula: Mg2.292 Fe.255 Al.865 Si1.588 O9 H4 Name: Chlorite Unit cell: 5.27 9.132 14.11 90.0 96.77 90.0 , V=674.32 Space group: C12/M1 (12)

Zanazzi P F , Montagnoli M , Nazzareni S , Comodi P , American Mineralogist , 92 (2007) p.655-661, Structural effects of pressure on monoclinic chlorite: a single-crystal study, Locality: Alpe Raguzzolo, Val Malenco, Italy, Sample: P = 3.66 GPa