AM_Albite_15 Formula: Na (Si3 Al) O8 Name: Albite Unit cell: 8.274 12.991 7.144 90.0 116.13 90.0 , V=689.41 Space group: C12/M1 (12)

Winter J K , Okamura F P , Ghose S , American Mineralogist , 64 (1979) p.409-423, A high-temperature structural study of high albite, monalbite, and the, analbite - monalbite phase transition, T = 980 C, sample = monalbite, Note: this sample of feldspar is from Tiburon, Marin County, California, USA