AM_Pargasite_31 Formula: O23.98 F.02 Si5.84 Al2.66 Ti.65 Mg3.97 Ca1.8 Na1.41 K.33 H2 Name: Pargasite Unit cell: 9.903 18.0 5.304 90.0 105.44 90.0 , V=911.34 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 18