AM_Feldspar_22 Formula: Sr (Al1.9 Si2.1) O8 Name: Feldspar Unit cell: 8.392 12.967 14.26 90.0 115.43 90.0 , V=1401.41 Space group: I12/C1 (15)

Benna P , Bruno E , American Mineralogist , 86 (2001) p.690-696, Single-crystal in situ high-temperature structural investigation, on strontium feldspar, Sample T = 160 deg C