AM_Pyroxene-ideal_108 Formula: Ti Na Si2 O6 Name: Pyroxene-ideal Unit cell: 9.791 9.06 5.231 90.0 109.9 90.0 , V=436.32 Space group: C12/C1 (15)

Thompson R M , Downs R T , American Mineralogist , 89 (2004) p.614-628, Model pyroxenes II: Structural variation as a function of tetrahedral rotation, model sodium titanium px after Ohashi et al. (1982), with O3-O3-O3 angle = 173.9 and model oxygen radius = 1.310