AM_Pargasite_40 Formula: Si6.32 Ga2.42 Mg4.48 Ca1.72 Na.86 O22 F2 Name: Pargasite Unit cell: 9.8992 17.992 5.3081 90.0 105.19 90.0 , V=912.38 Space group: C12/M1 (12)

Jenkins D M , Hawthorne F C , The Canadian Mineralogist , 33 (1995) p.13-24, Synthesis and rietveld refinement of amphibole along, the join Ca2Mg5Si8O22F2 - NaCa2Mg4Ga3Si6O22F2, Sample: PARG 6-4, Locality: sythetic