AM_Pyroxene-ideal_99 Formula: Al Li Si2 O6 Name: Pyroxene-ideal Unit cell: 9.572 8.715 5.032 90.0 112.1 90.0 , V=388.93 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 spodumene after Arlt and Angel (2003), with O3-O3-O3 angle = 189.9 and model oxygen radius = 1.263