manganite

[ mang-guh-nahyt ]
/ ˈmæŋ gəˌnaɪt /

noun

a gray to black mineral, hydrous manganese oxide, MnO(OH); gray manganese ore.
Chemistry. any of a series of salts containing tetravalent manganese and derived from either of two acids, H4MnO4 or H2MnO3.

Origin of manganite

First recorded in 1820–30; mangan(ese) + -ite1

Example sentences from the Web for manganite

British Dictionary definitions for manganite

manganite
/ (ˈmæŋɡəˌnaɪt) /

noun

a blackish mineral consisting of basic manganese oxide in monoclinic crystalline form: a source of manganese. Formula: MnO(OH)