Formula: (Na.8 K.2) (Si3 Al) O8
Name: Albite
Unit cell: 8.144 12.989 7.16 92.1 116.56 90.21 , V=676.85
Space group: C-1 (2)

Keefer K D , Brown G E , American Mineralogist , 63 (1978) p.1264-1273, Crystal structures and compositions of sanidine and high albite in, cryptoperthitic intergrowth, Note this sample of feldspar is from the, Rabb Canyon pegmatite, Grant County, New Mexico, USA