AM_Pargasite_34 Formula: O24 Si5.92 Al2.58 Fe3.41 Ti.55 Mg.48 Ca3.36 Na1.56 K.3 H2 Name: Pargasite Unit cell: 9.869 18.049 5.31 90.0 105.16 90.0 , V=912.93 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 21