AM_Pargasite_37 Formula: Si7.04 Ga1.28 Mg4.82 Ca1.8 Na.46 O22 F2 Name: Pargasite Unit cell: 9.862 18.025 5.293 90.0 104.924 90.0 , V=909.16 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 9-1, Locality: sythetic