AM_Pargasite_15
Formula: O24 Si5.92 Al2.78 Ti.6 Fe2.26 Mg2.16 Ca3.2 Na1.25 K.5 H2
Name: Pargasite
Unit cell: 9.858 18.031 5.307 90.0 105.13 90.0 , V=910.62
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 2