AM_Clinohypersthene_6
Formula: Mg.636 Fe1.332 Ca.032 Si2 O6
Name: Clinohypersthene
Unit cell: 9.87 9.054 5.328 90.0 110.15 90.0 , V=446.98
Space group: C12/C1 (15)

Smyth J R , American Mineralogist , 59 (1974) p.1069-1082, The high temperature crystal chemistry of clinohypersthene, T = 825 C