AM_Pyroxene-ideal_110 Formula: V Na Si2 O6 Name: Pyroxene-ideal Unit cell: 9.712 8.992 5.192 90.0 109.7 90.0 , V=426.88 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 vanadium px, with O3-O3-O3 angle = 173.0 and model oxygen radius = 1.300