AM_Pargasite_18 Formula: O23.98 F.02 Si5.92 Al2.68 Fe1.95 Ti.6 Mg2.77 Ca2.88 Na1.87 K5 H2 Name: Pargasite Unit cell: 9.806 18.026 5.308 90.0 104.91 90.0 , V=906.67 Space group: C12/M1 (12)

Oberti R , Vannucci R , Zanetti A , Tiepolo M , Brumm R C , American Mineralogist , 85 (2000) p.407-419, A Crystal Chemical re-evaluation of amphibole/melt and amphibole/clinopyroxene, DTi values in petrogenetic studies, SAMPLE 5