AM_Amblygonite_4 Formula: P Al O4.44 F.54 H.44 Li Name: Amblygonite Unit cell: 6.6815 7.716 6.9565 90.777 117.617 91.275 , V=317.58 Space group: C-1 (2)

Groat L A , Chakoumakos B C , Brouwer D H , Hoffman C M , Fyfe C A , Morell H , Schultz A J , American Mineralogist , 88 (2003) p.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 = 295 K, Natural Museum of Natural History, Washington D.C. #105914