Definition of manganophyllite in English:

manganophyllite

noun

Mineralogy
  • A variety of biotite containing manganese, occurring as thin reddish scales.

Origin

Late 19th century; earliest use found in Edward Dana (1849–1935), mineralogist and physicist. From German Manganophyll + -ite; compare -phyllite.

Pronunciation

manganophyllite

/ˌmaŋɡənəʊˈfɪlʌɪt/