AM_Hedenbergite_18 Formula: Ca Fe Si2 O6 Name: Hedenbergite Unit cell: 9.845 9.0293 5.245 90.0 104.775 90.0 , V=450.83 Space group: C12/C1 (15)
Redhammer G J , Amthauer G , Roth G , Tippelt G , Lottermoser W , American Mineralogist , 91 (2006) p.1271-1292, Single crystal X-ray diffraction and temperature dependent 57Fe Mossbauer, spectroscopy on the hedenbergite - aegirine (Ca,Na)(Fe2+,Fe3+)Si2O6 solid solution, Locality: synthetic, Sample: Hd21, T = 298 K