ternovskite

\\tərˈnȯfˌskīt, -nȯvzˌk-\ noun (-s)

Etymology: Russian ternovskit, from Ternovskiĭ, name of a mine in Krivoi Rog, southeast central Ukraine, Union of Soviet Socialist Republics + Russian -it -ite

: a mineral Na₂(Mg,Fe)₃Fe₂Si₈O₂₂(OH)₂ consisting of a basic silicate of sodium, magnesium, and iron of the amphibole group