Siegenite Huang C H, Knop O Canadian Journal of Chemistry 49 (1971) 598-602 Chalkogenides of the transition elements. VIII A X-ray and neutron diffraction study of the spinel CoNi2S4 Sample: examined with X-ray diffraction _database_code_amcsd 0012158 9.424 9.424 9.424 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso CoM .5 0 0 .5 .64 NiM .5 0 0 .5 .64 NiT .125 .125 .125 .37 S .2591 .2591 .2591 .28