Word:

Black oxide of manganese

(Chem.) a heavy black powder MnO2, occurring native as the mineral pyrolusite, and valuable as a strong oxidizer; - called also familiarly manganese. It colors glass violet, and is used as a decolorizer to remove the green tint of impure glass.

See also: Manganese

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black medick
Black Monday
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black moss
black mulberry
black music
Black Muslim
black mustard
black nightshade
black oak
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black olive
black opal
black operation
black out
-- Black oxide of manganese --
Black Panther
Black Panthers
black pea
black pepper
Black perch
Black person
Black pigment
black pine
black plague
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black poplar
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black racer
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