AM_Paragonite_3 Formula: Si3.01 Al2.96 Ti.007 Fe.01 Mn.002 Mg.006 (Na.88 K.1 Ca.01 Ba.01) O12 H2 Name: Paragonite Unit cell: 5.082 8.813 18.91 90.0 94.7 90.0 , V=844.09 Space group: C12/C1 (15)

Comodi P , Zanazzi P F , Physics and Chemistry of Minerals , 24 (1997) p.274-280, Pressure dependence of structural parameters of paragonite, Sample: P = 2.54 GPa