AM_Diopside_92 Formula: Fe.51 Al.6 Mg.44 Ca.96 Si1.4 O6 Name: Diopside Unit cell: 9.786 8.86 5.338 90.0 105.87 90.0 , V=445.18 Space group: C12/C1 (15)

Kabalov Y K , Oeckler O , Sokolova E V , Mironov A B , Chesnokov B V , European Journal of Mineralogy , 9 (1997) p.617-621, Subsilicic ferrian aluminian diopside from the Chelyabinsk, coal basin (Southern Urals) - an unusual clinopyroxene, Locality: Chelyabinsk coal basin, Southern Urals