AM_Albite_6 Formula: Na Al Si3 O8 Name: Albite Unit cell: 8.206 12.817 7.169 94.0 116.4 87.7 , V=673.69 Space group: C-1 (2)

Winter J K , Ghose S , Okamura F P , American Mineralogist , 62 (1977) p.921-931, A high-temperature study of the thermal expansion and the anisotropy of the, sodium atom in low albite, T = 500 deg C, Note: this sample of feldspar is from Tiburon, Marin County, California, USA