AM_Amblygonite Formula: P Al O4.119 (F.881 Li) H.119 Name: Amblygonite Unit cell: 6.6452 7.733 6.9193 90.35 117.44 91.2 , V=315.44 Space group: C-1 (2)

Groat L A , Raudsepp M , Hawthorne F C , Ercit T S , Sherriff B L , Hartman J S , American Mineralogist , 75 (1990) p.992-1008, The amblygonite-montebrasite series: Characterization by single-crystal, structure refinement, infrared spectroscopy and multinuclear MAS-NMR, spectroscopy, sample AF-65