AM_Siegenite Formula: Co Ni2 S4 Name: Siegenite Unit cell: 9.424 9.424 9.424 90.0 90.0 90.0 , V=836.96 Space group: FD3M (227)

Huang C H , Knop O , Canadian Journal of Chemistry , 49 (1971) p.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