AM_Chrysoberyl_11 Formula: Al1.98 Cr.02 Be O4 Name: Chrysoberyl Unit cell: 9.4082 5.479 4.4288 90.0 90.0 90.0 , V=228.29 Space group: PNMA (62)

Weber S U , Grodzicki M , Lottermoser W , Redhammer G J , Tippelt G , Ponahlo J , Amthauer G , Physics and Chemistry of Minerals , 34 (2007) p.507-515, 57Fe Mossbauer spectroscopy, X-ray single-crystal diffractometry, and, electronic structure calculations on natural alexandrite, Locality: Malyshevo near Terem Tschanka, Sverdlovsk, Ural, Russia, Note: changed O1(z) from .788822 to .78822