AM_Cryptohalite Formula: Si N2 F6 H8 Name: Cryptohalite Unit cell: 8.395 8.395 8.395 90.0 90.0 90.0 , V=591.65 Space group: FM3M (225)

Schlemper E O , Hamilton W C , Rush J J , Journal of Chemical Physics , 44 (1966) p.2499-2505, Structure of cubic ammonium fluosilicate: Neutron-diffraction and, neutron-inelastic-scattering studies, Locality: synthetic