AM_Anorthite_2 Formula: Ca Si Al O4 Name: Anorthite Unit cell: 8.175 12.873 14.17 93.11 115.89 91.28 , V=1337.80 Space group: I-1 (2)

Angel R J , American Mineralogist , 73 (1988) p.1114-1119, High-pressure structure of anorthite, Sample: P = 1 bar