Definition of ranciéite in English:

ranciéite

(also rancieite)

noun

Mineralogy
  • A calcium- and manganese-containing mineral occurring as soft dark brown flakes and as compact or friable masses.

Origin

Mid 19th century; earliest use found in Henry William Bristow (1817–1889), geologist. From French ranciéite, alteration of † rancierite from Rancié (formerly also † Rancier), name of the mountain near Vicdessos, Ariège, France, where the mineral was first found + -ite.

Pronunciation

ranciéite

/ˌransɪˈeɪʌɪt/