AM_Pargasite
Formula: O24 (Si6 Al2) Mg4.37 Sc.63 Ca2 Na H2
Name: Pargasite
Unit cell: 9.9405 18.094 5.2986 90.0 105.364 90.0 , V=918.97
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