Bararite
Schlemper E O, Hamilton W C
Journal of Chemical Physics 45 (1966) 408-409
On the structure of trigonal ammonium fluorosilicate
Locality: synthetic
_database_code_amcsd 0012988
5.784 5.784 4.796 90 90 120 P-3m1
atom    x     y    z
NH4   1/3   2/3 .330
Si      0     0    0
F    .139 -.139 .799