AM_Pargasite_14 Formula: O24 Si6 Al2.65 Fe1.35 Ti.45 Mg3.27 Ca3.61 Na1.33 H2 Name: Pargasite Unit cell: 9.846 18.042 5.316 90.0 105.1 90.0 , V=911.74 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 1