AM_Brewsterite-Ba_1
Formula:
Ba.9 Na.035 K.02 Mg.04 Al2.1 Si5.9 O20.88 H9.3
Name:
Brewsterite-Ba
Unit cell:
6.79 17.581 7.735 90.0 94.5 90.0 , V=920.52
Space group:
P121/M1 (11)
Cabella R , Lucchetti G , Palenzona A , Quartieri S , Vezzalini G , European Journal of Mineralogy , 5 (1993) p.353-360, First occurrence of a Ba-dominant brewsterite: structural features