AM_Amblygonite_5 Formula: P Al O4.23 F.05 H.23 Li Name: Amblygonite Unit cell: 6.678 7.717 6.931 90.59 117.65 91.08 , V=316.26 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: from Chursdorf, near Penig, Saxony, Germany at T = 20 K