Mineralogy Database

Pyrolusite Mineral Data

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General Pyrolusite Information

Help on Chemical  Formula: Chemical Formula: MnO2
Help on Composition: Composition: Molecular Weight = 86.94 gm
   Manganese  63.19 %  Mn  100.00 % MnO2
   Oxygen     36.81 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn4+O2
Help on Environment: Environment: Sedimentary, hydrothermal, and secondary.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1827
Help on Locality: Locality: Common world wide. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek, pyro and louein, "fire" and "to wash," because it was used to remove the greenish color imparted to glass by iron compounds.
Help on Name Pronunciation: Name Pronunciation: Pyrolusite + Pronunciation Say PYROLUSITE
Help on Synonym: Synonym: ICSD 73716
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