Citation: Foit, F. F.; Robinson, P. D.; Wilson, J. R. (1995). The crystal structure of gillulyite, Tl2(As,Sb)8S13, from the Mercur gold deposit, Tooele County, Utah, U.S.A. American Mineralogist, 80, pp. 394-399.
Formula: As3.89 S6.5 Sb0.11 Tl
List type: interleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: As10 S14 Sb4 Tl2 (As5 S7 Sb2 Tl)
Multiplicity: 1