AM_Albite_13 Formula: Na (Si3 Al) O8 Name: Albite Unit cell: 8.259 12.975 7.151 90.8 116.1 90.0 , V=688.08 Space group: C-1 (2)

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, Note: this sample of feldspar is from Tiburon, Marin County, California, USA