AM_Aegirine-augite_1
Formula: (Ca.34 Na.66) Al.03 Ti.01 Fe.52 Mn.09 Mg.36 Si1.99 O6
Name: Aegirine-augite
Unit cell: 9.6787 8.8394 5.2755 90.0 106.903 90.0 , V=431.84
Space group: C12/C1 (15)

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: variety blanfordite