Jingsuiite
Jingsuiite is an IMA-recognized mineral species in the native element class, with the chemical formula TiB₂.
It crystallizes in the hexagonal crystal system (space group P6/mmm).
Key properties: specific gravity 4.52; Metallic (synthetic) luster.
IMA symbol Ji, IMA status: approved, named in 2019.
Found in corundum in a podiform chromitite in ophiolite (Tibet). As inclusions in skeletal corundum xenoliths in basaltic tuff (Israel).
It is found associated with Osbornite-khamrabaevite solid solution (Ti[C0.5N0.5]), deltalumite, hexagonal Ti10(Si, P, )7 (Tibet); Fe-Ti silicides, khamrabaevite, osbornite.
The mineral was named to honor Jingsui Yang (b. 1950), Center for Advanced Research on the Mantle, Key Laboratory for Continental Dynamics, Institute of Geology.