AM_Astrophyllite_5
Formula: Mn2 Fe4.266 Mg.062 (Ti.924 Zr1.076) Si8 K1.74 Na.62 Ca.14 O30 F.5 H8
Name: Astrophyllite
Unit cell: 5.418 11.933 11.742 112.962 94.62 103.123 , V=668.53
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, Sample: MSH33a, Locality: aplite/pegmatite at Mont Saint-Hilaire, Quebec, Canada