Bohuslavite
Chemical formula: Fe<sup>3+</sup><sub>4</sub>(PO<sub>4</sub>)<sub>3</sub>(S<sup>6+</sup>O<sub>4</sub>)(OH)·<i>n</i>H<sub>2</sub>O (15≤<i>n</i>≤24)
Cabinet No. 40
Chemical formula: Fe<sup>3+</sup><sub>4</sub>(PO<sub>4</sub>)<sub>3</sub>(S<sup>6+</sup>O<sub>4</sub>)(OH)·<i>n</i>H<sub>2</sub>O (15≤<i>n</i>≤24)