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manganite
[ mang-guh-nahyt ]
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, H 4 MnO 4 or H 2 MnO 3 .
manganite
/ ˈmæŋɡəˌnaɪt /
noun
- a blackish mineral consisting of basic manganese oxide in monoclinic crystalline form: a source of manganese. Formula: MnO(OH)
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Word History and Origins
Origin of manganite1
First recorded in 1820–30; mangan(ese) + -ite 1
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Example Sentences
Manganite, or hydroxide of manganese; is brownish-black or iron-black, powder brown, with somewhat of a metallic lustre.
From Project Gutenberg
The hydrated form, found native as the mineral manganite, is produced by the spontaneous oxidation of manganous hydroxide.
From Project Gutenberg
The sesquioxide is found crystallized in an anhydrous form in braunite, and hydrated in manganite.
From Project Gutenberg
The hydrate occurs sometimes in nature as black crystals (manganite).
From Project Gutenberg
It is a grey stone, full of crystalline needles, like manganite.
From Project Gutenberg
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