AM_Hedenbergite_27
Formula: (Ca.55 Na.45) Fe Si2 O6
Name: Hedenbergite
Unit cell: 9.7428 8.9091 5.275 90.0 106.126 90.0 , V=439.85
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: Ae451, T = 298 K