Citation: Daniel, P; Barbey, L; Nguyen, N; Ducouret, A; Groult, D; Raveau, B (1994). New mixed-valent iron oxides with the 1212-type structure: Tl1-x Pbx Sr3 Fe2 O8. Journal of Physics and Chemistry of Solids, 55, pp. 795-802.
Formula: Fe2 O8 Pb0.485 Sr3 Tl0.485
Chemical name:Thallium lead strontium iron oxide (0.5/0.5/3/2/8)