AM_Pyroxene-ideal_132
Formula: Mg Si O3
Name: Pyroxene-ideal
Unit cell: 9.199 9.026 5.211 90.0 90.0 90.0 , V=432.67
Space group: PBCN (60)

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 protopyroxene after Yang et al. (1999), with O3-O3-O3 angle = 166.2 and model oxygen radius = 1.312, Note: Atoms Mg, Si, and O are assigned to atomic positions for convenience