Polekhovskyite
Polekhovskyite is an IMA-recognized mineral species in the native element class, with the chemical formula MoNiP₂.
It crystallizes in the hexagonal crystal system (space group P6_3/mmc).
Key properties: specific gravity 6.626; [Metallic.] luster.
IMA symbol Pkh, IMA status: approved, named in 2019.
Found in phosphide assemblages in severely altered, diopside microbreccia in pyrometamorphic rocks.
It is found associated with Murashkoite, transjordanite, Si-rich fluorapatite, hematite, magnetite. Distribution From Halamish wadi, southern part of the Hatrurim Formation, Negev Desert.
The mineral was named to honor Yury Stepanovich Polekhovsky (1947-2018), Russian geologist and mineralogist, for his contributions to the studies of opaque minerals, including phosphides.