Reevesite
Chemical formula: Ni<sup>2+</sup><sub>6</sub>Fe<sup>3+</sup><sub>2</sub>(OH)<sub>16</sub>CO<sub>3</sub>ยท4H<sub>2</sub>O
Cabinet No. 40
Chemical formula: Ni<sup>2+</sup><sub>6</sub>Fe<sup>3+</sup><sub>2</sub>(OH)<sub>16</sub>CO<sub>3</sub>ยท4H<sub>2</sub>O