Black oxide of manganese , Manganese dioxide ∨ peroxide , ∨ Black manganese Meaning, Definition & Usage
Definitions
(Chem.) , a heavy black powderMnO2 , occurring native as the mineral pyrolusite, and valuable as a strong oxidizer; called also familiarlymanganese . It colors glass violet, and is used as a decolorizer to remove the green tint of impure glass.