AM_Pyroxene-ideal_118
Formula: Mg Si O3
Name: Pyroxene-ideal
Unit cell: 6.928 6.0 3.464 90.0 109.47 90.0 , V=135.76
Space group: P121/C1 (14)

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 low clinopx, closest-packed, ABABCACABCBC, with, O3A-O3A-O3A angle = 240, O3B-O3B-O3B angle = 120, and model oxygen radius = 1