pyrolusite

Nom commun , , singulier

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1 - Pyrolusite | define pyrolusite at dictionary.com

Pyrolusite definition, a common mineral, manganese dioxide, MnO 2 , the principal ore of manganese, used in various manufactures, as a decolorizer of brown ...
http://www.dictionary.com/browse/pyrolusite

2 - Pyrolusite | define pyrolusite at dictionary.com

Define pyrolusite: a soft black or steel-gray mineral of metallic luster consisting of manganese dioxide that is the most?pyrolusite in a sentence.
http://www.dictionary.com/browse/pyrolusite

3 - pyrolusite | definition of pyrolusite by merriam-webster

Define pyrolusite. pyrolusite synonyms, pyrolusite pronunciation, pyrolusite translation, English dictionary definition of pyrolusite. n. A soft, black to dark gray  ...
http://www.merriam-webster.com/dictionary/pyrolusite

4 - pyrolusite | definition of pyrolusite by merriam-webster

Pyrolusite is a mineral consisting essentially of manganese dioxide (MnO2) and is important as an ore of manganese. It is a black, amorphous appearing ...
http://www.merriam-webster.com/dictionary/pyrolusite

5 - pyrolusite - definition of pyrolusite by the free dictionary

The definition above, is the most inclusive and would include all substances ... The mineral, Pyrolusite, is the most important ore mineral of MANGANESE, forms  ...
http://www.thefreedictionary.com/pyrolusite

6 - pyrolusite - definition of pyrolusite by the free dictionary

pyrolusite - Définitions Français : Retrouvez la définition de pyrolusite... - Dictionnaire, définitions, section_expression, conjugaison, synonymes, homonymes, ...
http://www.thefreedictionary.com/pyrolusite