AM_Pargasite_38
Formula: Si6.8 Ga1.62 Mg4.6 Ca1.96 Na.71 O22 F2
Name: Pargasite
Unit cell: 9.882 18.017 5.299 90.0 105.068 90.0 , V=911.02
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 8-2, Locality: sythetic