AM_Fresnoite Formula: Ba2 Ti Si2 O8 Name: Fresnoite Unit cell: 8.518 8.518 5.211 90.0 90.0 90.0 , V=378.09 Space group: P4BM (100)

Moore P B , Louisnathan S J , Zeitschrift fur Kristallographie , 130 (1969) p.438-448, The crystal structure of fresnoite, Ba2(TiO)Si2O7, Positive polarity, Locality: sanbornite deposits of eastern Fresno County, California, USA