AM_Pargasite_35 Formula: O24 (Si7.68 Al.16 Ti.26) Fe.45 Mg4.45 Ca1.08 Na1.07 K1.23 H2 Name: Pargasite Unit cell: 10.032 18.032 5.284 90.0 104.85 90.0 , V=923.93 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 22