Thalliumpharmacosiderite
Chemical formula: Tl<sup>1+</sup>Fe<sup>3+</sup><sub>4</sub>[(As<sup>5+</sup>O<sub>4</sub>)<sub>3</sub>(OH)<sub>4</sub>]ยท4H<sub>2</sub>O
Cabinet No. 40
Chemical formula: Tl<sup>1+</sup>Fe<sup>3+</sup><sub>4</sub>[(As<sup>5+</sup>O<sub>4</sub>)<sub>3</sub>(OH)<sub>4</sub>]ยท4H<sub>2</sub>O