"Pyrolusite" is a word in ENGLISH

pyrolusite ENGLISH
Definition:

Manganese dioxide, a mineral of an iron-black or dark
steel-gray color and metallic luster, usually soft. Pyrolusite parts
with its oxygen at a red heat, and is extensively used in discharging
the brown and green tints of glass (whence its name).

Few words of positivity

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Zack W. Van

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Laugh your heart out.

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manganite ENGLISH

A compound of manganese dioxide with a metallic oxide; so called as though derived from the hypothetical manganous acid.

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polianite ENGLISH

Manganese dioxide, occurring in tetragonal crystals nearly as hard as quartz.

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A process for the recovery or regeneration of manganese dioxide in the manufacture of chlorine, by means of milk of …

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