AM_Clinohypersthene_5
Formula: Mg.636 Fe1.332 Ca.032 Si2 O6
Name: Clinohypersthene
Unit cell: 9.851 9.045 5.326 90.0 110.05 90.0 , V=445.80
Space group: C12/C1 (15)

Smyth J R , American Mineralogist , 59 (1974) p.1069-1082, The high temperature crystal chemistry of clinohypersthene, T = 760 C