Barberiite Caron A P, Ragle J L Acta Crystallographica B27 (1971) 1102-1107 Refinement of the structure of orthorhombic ammonium tetrafluoroborate, NH4BF4 Locality: synthetic _database_code_amcsd 0019268 9.077 5.679 7.279 90 90 90 Pnma atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) F1 .0752 .25 .6111 .0112 .0505 .0301 0 .0197 0 F2 .8283 .25 .5637 .0159 .0368 .0139 0 -.0118 0 F3 .9241 .0517 .8030 .0139 .0237 .0163 .0014 -.0007 .0078 B .9403 .25 .6931 .0095 .0238 .0107 0 .0005 0 N .3140 .25 .3360 .0072 .0274 .0118 0 -.0004 0 H1 .225 .25 .346 H2 .327 .25 .234 H3 .346 .121 .372