AM_Fluor-arfvedsonite Formula: O22.8 F1.2 (Si7.88 Al.12) Mg.2 Fe3.57 Mn.67 Ti.1 Zn.1 Li.36 Na2.47 K.245 H.8 Name: Fluor-arfvedsonite Unit cell: 9.816 18.004 5.325 90.0 103.72 90.0 , V=914.22 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(8)