AM_Albite_4 Formula: Na (Si3 Al) O8 Name: Albite Unit cell: 8.2763 12.9593 7.1463 90.097 116.092 89.988 , V=688.36 Space group: C-1 (2)

Prewitt C T , Sueno S , Papike J J , American Mineralogist , 61 (1976) p.1213-1225, The crystal structures of high albite and monalbite at high temperatures, T = 1090 deg C, feldspar