AM_Pellyite
Formula:
Ba2 (Fe1.48 Mg.22 Mn.18 Zn.12) Al.2 Si5.8 Ca O17
Name:
Pellyite
Unit cell:
15.677 7.15 14.209 90.0 90.0 90.0 , V=1592.69
Space group:
CMCM (63)
Meagher E P , American Mineralogist , 61 (1976) p.67-73, The atomic arrangement of pellyite: Ba2Ca(Fe,Mg)2Si6O17