AM_Astrophyllite
Formula: Fe5.988 Na.627 Mg.064 (Ti1.15 Zr.85) Si8 K1.898 Ca.121 O30 F.5 H4
Name: Astrophyllite
Unit cell: 5.4049 11.9175 11.7488 112.93 94.627 103.139 , V=666.54
Space group: P-1 (2)

Piilonen P C , McDonald A M , Lalonde A E , The Canadian Mineralogist , 41 (2003) p.27-54, Insights into astrophyllite-group minerals II: Crystal chemistry, Note: sample LAB3, peralkaline nepheline gneiss, Locality: Seal Lake, Labrador, Canada