AM_(Na98Mg02)(Mg51Si49)Si2O6
Formula: Na.98 Mg.52 Si2.98 O6
Name: (Na.98Mg.02)(Mg.51Si.49)Si2O6
Unit cell: 9.4051 8.6436 5.2679 90.0 108.142 90.0 , V=406.96
Space group: P12/N1 (13)

Yang H , Konzett J , Frost D J , Downs R T , American Mineralogist , 94 (2009) p.942-949, X-ray diffraction and Raman spectroscopic study of clinopyroxenes with six-coordinated, Si in the Na(Mg0.5Si0.5)Si2O6 - NaAlSi2O6 system, Note: Sample J1