AM_Pargasite_10 Formula: O24 Si6.48 Al2.27 Mg4.55 Ca1.7 Na Name: Pargasite Unit cell: 9.9022 17.9747 5.275 90.0 105.384 90.0 , V=905.25 Space group: C12/M1 (12)

Sharma A , Jenkins D M , American Mineralogist , 84 (1999) p.1304-1318, Hydrothermal synthesis of amphiboles along the tremolite-pargasite join, and in the ternary system tremolite-pargasite-cummingtonite, Sample: PARG 19-11