Citation: Redhammer, G. J.; Amthauer, G.; Roth, G.; Tippelt, G.; Lottermoser, W. (2006). 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. American Mineralogist, 91, pp. 1271-1292.