manganite

[ mang-guh-nahyt ]

noun

1. a gray to black mineral, hydrous manganese oxide, MnO(OH); gray manganese ore.
2. Chemistry. any of a series of salts containing tetravalent manganese and derived from either of two acids, H 4 MnO 4 or H 2 MnO 3 .

manganite

/ ˈmæŋɡəˌnaɪt /

noun

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

Word History and Origins

Origin of manganite¹

First recorded in 1820–30; mangan(ese) + -ite ¹

Example Sentences

The researchers manipulated a steel gray mineral called manganite, used to build magnetic hard discs in computers.

From Washington Times

Its ores occur abundantly in nature as the minerals pyrolusite, manganite, etc.

From Project Gutenberg