AM_Pargasite_39 Formula: Si6.28 Ga2.36 Mg4.57 Ca1.78 Na.8 O22 F2 Name: Pargasite Unit cell: 9.897 18.01 5.3059 90.0 105.165 90.0 , V=912.82 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 7-1, Locality: sythetic