AM_Pargasite_30 Formula: O24 Si5.92 Al2.53 Fe.52 Ti.65 Mg3.7 Ca3.44 Na1.56 K.35 H2 Name: Pargasite Unit cell: 9.888 18.023 5.308 90.0 105.31 90.0 , V=912.38 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 17