nevyanskite
/nɛˈvjanskʌɪt/ /nɪˈvjanskʌɪt/(also Nevjanskite, Nevyanskite) Mineralogy. Now rare
noun
A variety of iridosmine containing about 35 to 50 per cent osmium.
Origin
Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From German Newjanskit from Newjansk, German transliteration of Nevyansk, the name of a town in Russia (Russian Nev′jansk), near to which the mineral was found + -it.