AM_Ca2Sr8Al2Si2O8 Formula: (Ca.2 Sr.8) Si2 Al2 O8 Name: Ca.2Sr.8Al2Si2O8 Unit cell: 8.37 12.967 14.262 90.58 115.55 90.44 , V=1396.34 Space group: I-1 (2)

Benna P , Nestola F , Ballaran T B , Balic-Zunic T , Lundegaard L F , Bruno E , American Mineralogist , 92 (2007) p.1190-1199, The high-pressure structural configurations of Ca0.2Sr0.8Al2Si2O8 feldspar: