AM_Astrophyllite_8
Formula:
K1.8 Na1.2 (Fe6.3 Mn.7) (Ti1.6 Nb.2 Zr.1 Sn.1) Si8 O31
Name:
Astrophyllite
Unit cell:
5.36 11.76 21.07999 85.13 90.0 103.22 , V=1288.61
Space group:
A-1 (2)
Woodrow P J , Acta Crystallographica , 22 (1967) p.673-678, The crystal structure of astrophyllite, Locality: El Paso County, Colorado, USA