AM_Pargasite_1 Formula: O22 F2 Si6 Al3 Mg4 Ca2 Na Name: Pargasite Unit cell: 9.8277 17.93 5.2931 90.0 105.168 90.0 , V=900.21 Space group: C12/M1 (12)

Raudsepp M , Turnock A C , Hawthorne F C , Sherriff B L , Hartman J S , American Mineralogist , 72 (1987) p.580-593, Characterization of synthetic pargasitic amphiboles