AM_Magnesio-arfvedsonite Formula: Na1.8 K.31 Mg3.49 Fe.77 Ti.1 Al.15 Mn.4 Li.18 Ca.28 Si7.9 O24 H2 Name: Magnesio-arfvedsonite Unit cell: 9.7624 17.9136 5.2874 90.0 103.837 90.0 , V=897.83 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, Note: designated as juddite in the paper