AM_Pigeonite_1
Formula:
(Mg.54 Fe.46) Si O3
Name:
Pigeonite
Unit cell:
9.678 8.905 5.227 90.0 108.71 90.0 , V=426.67
Space group:
P121/C1 (14)
Clark J R , Ross M , Appleman D E , American Mineralogist , 56 (1971) p.888-908, Crystal chemistry of a lunar pigeonite, class b data refinement