Chemical Formula: Tl2(As,Sb)8S13
Help on Composition: Composition: Molecular Weight = 1518.65 g
 
Sulfur 27.45 % S 0.00 % 0.00 %
Arsenic 29.60 % As 0.00 % 0.00 %
Antimony 16.03 % Sb 0.00 % 0.00 %
Thallium 26.92 % Tl 0.00 % 0.00 %

100.00 %
 
Help on Empirical Formula: Empirical Formula: Tl2As6Sb2S13
Help on Environment: Environment: Found in vuggy masses of barite, in barite and calcite veins, and in the silty, carbonaceous limestone host
Help on Locality: Locality: Mercury gold deposit, Tooele County, Utah, USA.. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named in honor of the late James C. Gilluly, United States Geological Survey
Help on Synonym: Synonym: