AM_Bararite
Formula: N2 Si F6
Name: Bararite
Unit cell: 5.784 5.784 4.796 90.0 90.0 120.0 , V=138.95
Space group: P-3M1 (164)

Schlemper E O , Hamilton W C , Journal of Chemical Physics , 45 (1966) p.408-409, On the structure of trigonal ammonium fluorosilicate, Locality: synthetic