AM_Pargasite_21 Formula: O23.96 F.04 Si5.92 Al2.73 Fe2.33 Ti.55 Mg2.11 Ca3.16 Na1.5 K3.85 H2 Name: Pargasite Unit cell: 9.853 18.06 5.314 90.0 105.07 90.0 , V=913.08 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 8