Meaning of polianite in English:

polianite

Pronunciation /ˈpəʊlɪənʌɪt/

noun

Mineralogy
  • A mineral containing manganese, formerly regarded as a variety of pyrolusite but now generally regarded as identical with it.

Origin

Mid 19th century; earliest use found in James Nicol (1810–1879), geologist. From German Polianit from ancient Greek πολιά greyness (from πολιός grey) + German -it, so called on account of its colour.