AM_Hedenbergite_22
Formula: (Ca.904 Na.096) Fe Si2 O6
Name: Hedenbergite
Unit cell: 9.8248 8.9973 5.2549 90.0 105.013 90.0 , V=448.66
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: Hd102m, T = 298 K