AM_Fluor-arfvedsonite_2 Formula: O22.3 (F1.7 Si8) Mg.77 Fe3.06 Mn.81 Ti.12 Li.25 Na2.799 Ca.008 K.179 H.3 Name: Fluor-arfvedsonite Unit cell: 9.858 18.046 5.316 90.0 103.69 90.0 , V=918.84 Space group: C12/M1 (12)

Hawthorne F C , Ungaretti L , Oberti R , Bottazzi P , Czamanske G K , American Mineralogist , 78 (1993) p.733-745, Li: an important component in igneous alkali amphiboles, Locality: Questa caldera, New Mexico, Sample: A(10)