AM_Winchite_1 Formula: Na2.24 K.169 Mg3.37 Al.23 Fe1.31 Mn.06 Li.13 Ca.27 Si7.9 O24 H2 Name: Winchite Unit cell: 9.7573 17.9026 5.2886 90.0 103.814 90.0 , V=897.10 Space group: C12/M1 (12)

Ghose S , Kersten M , Langer K , Rossi G , Ungaretti L , Physics and Chemistry of Minerals , 13 (1986) p.291-305, Crystal field spectra and Jahn Teller effect of Mn3+, in clinopyroxene and clinoamphiboles from India