Manganite meaning
A steel-gray to black mineral, MnO(OH), found in North America and Europe; manganese oxide.
noun
A dark-colored, shiny mineral, MnO(HO), that is an ore of manganese; hydrous manganese oxide.
noun
Any of a series of salts that may be considered as derivatives of manganous acid, the hydroxide of tetravalent manganese.
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