AM_Zinnwaldite-2M1 Formula: K.978 Fe1.334 Li.486 Al1.79 Si3.11 O11.09 (F.91 H1.09) Name: Zinnwaldite-2M1 Unit cell: 5.292 9.187 19.935 90.0 95.4 90.0 , V=964.89 Space group: C1C1 (9)

Rieder M , Hybler J , Smrcok L , Weiss Z , European Journal of Mineralogy , 8 (1996) p.1241-1248