AM_Clinohypersthene_4
Formula: Mg.636 Fe1.333 Ca.032 Si2 O6
Name: Clinohypersthene
Unit cell: 9.794 9.057 5.279 90.0 109.35 90.0 , V=441.82
Space group: P121/C1 (14)

Smyth J R , American Mineralogist , 59 (1974) p.1069-1082, The high temperature crystal chemistry of clinohypersthene, T = 700 C