Definition of manganosiderite in English:

manganosiderite

noun

Mineralogy
  • A variety of rhodochrosite containing approximately equal amounts of MnCO₃ and FeCO₃.

Origin

Late 19th century; earliest use found in Edward Dana (1849–1935), mineralogist and physicist. From German Manganosiderit from Mangano- + Siderit.

Pronunciation

manganosiderite

/ˌmaŋɡənəʊˈsɪdərʌɪt/