Amblygonite Groat L A, Chakoumakos B C, Brouwer D H, Hoffman C M, Fyfe C A, Morell H, Schultz A J American Mineralogist 88 (2003) 195-210 The amblygonite (LiAlPO4F) - montebrasite (LiAlPO4OH) solid solution: A combined powder and single-crystal neutron diffraction and solid-state Li MAS, CP MAS, and REDOR NMR study Sample AF-46: from Karibib, South Africa at T = 12 K Natural Museum of Natural History, Washington D.C. #105914 _database_code_amcsd 0002966 6.6778 7.7036 6.9503 90.861 117.687 91.293 C-1 atom x y z occ Uiso P .9844 .34096 .2608 .0041 Al1 0 0 0 .0036 Al2 0 0 1/2 .0031 O1 -.3168 .01518 -.1529 .0057 O2 .2982 .06035 .5813 .0061 O3 .1009 -.22275 -.3872 .0050 O4 .0233 .23330 .0957 .0061 O .0333 .08557 -.2339 .44 .0063 F .0333 .08557 -.2339 .54 .0063 H .2030 .1376 .8454 .44 .018 Li1 .048 -.3214 .254 .34 .007 Li2 .0670 -.3222 .313 .65 .010