Citation: Yang, Hexiong; Hubler, David K.; Lavina, Barbara; Downs, Robert T.; Costin, Gelu (2007). Tyrrellite, Cu(Co~0.68~Ni~0.32~2)~2~Se~4~, isostructural with spinel. Acta Crystallographica, Section C, 63, pp. i73-i74.
Formula: Co1.36 Cu Ni0.64 Se4
Chemical name: copper cobalt nickel tetraselenide
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Co16 Cu8 Ni16 Se32 (Co2 Cu Ni2 Se4)
Multiplicity: 1